Special Equipment
HP-41CV Calculator & related Equipment SALE.
Nowadays programming Windows Applications on Win10 using GFABasic is easy, this older HP41 equipment is no longer in use. Offered for sale with individual pricing at typical (eBay) current market rates, depending on the items popularity. No bidding, just straight prices.
# All HP CALCULATOR items are plus post/shipping fees with insurance, to any place.
SpecialEquipment.php#HP41CV
HP41 CV Calculator
$300.00 Only ONE
Parcel code
2
HP41CV with (LONG) zip case, uses 4x rechargeable Ni-mh batteries (no recharger included). With light-grey keys overlay.
# Has updated lead & socket for computer USB connection (see image), to run on computer power, for no loss of memory, while batteries are externally recharging.
The CV model having 2,233 bytes of ram memory (2Kb) & 64Kb Rom memory. Original retail price US$325.00 (Hp's 1982 price-list).
Our price AUD$300.00
# REFURBISHED AS ITS OLD: Had a sluggish 'ALPHA' key - now working correctly. & 2x lower cracked (NOT BROKEN) screw-posts, now glued with Bondic & UV light hardened.
# Valued EXTRAs included: 1x fitted keys-template. An HP41C QREF. 4x NiMh rechargeable batteries for HP41. USB lead to computer, & full installation as a power socket on the 41CV.
ADDITIONALLY: If installing a future upgrade to 'Systemyde' 41CL motherboard which does fit this CV model, please click this button:
The 2nd fitted Mini-USB socket marked 'COPY' in the above image, could be wired-up to allow the data to/from computer link, using the 41CL's 2 pin printer output, motherboard-socket. A visit to systemyde website Manuals page, allows you to download the latest revision details. Download '41CL Calculator Manual, 04/28/2023', to see the motherboard image, & the HP41 plug-in port interface. You would need to buy this accessory to make a link between the calculator & desktop/laptop. But here is the thing, by not using the HP41 port accessory, which does take up 1x port during use, its possible to rewire the wires into the Mini-USB 'COPY' socket instead. This means use of any kind of computer interface could be attached. The standard USB to Mini-USB, being probably the easiest to install & use. Further details would be needed to ascertain which 'COPY' socket pins to attach to which wire. As there are only 2 wires, its a simplish binary yes/no problem! Also the HP41 batteries are likely to run out during data-transfers, the use of the other (lower) Mini-USB socket for mains power from computer to calculator, would prove its weight in gold.
SpecialEquipment.php#32KbUtilEprom
W&W 32Kb Utility Eprom in Card-Reader
$0.00 SOLD
Parcel code
1
Fitting the HP41C,CV,CX calculator is the 'W&W Software products GMBH', 32Kb Utility Eprom Box in Card-Reader, stores variable size Eproms, up to 32Kb Eprom memory. Currently has 32Kb Eprom loaded & working. The 32Kb of eproms contain:
Extended I/O Xrom 23d @8000h. RPN1 Xrom 17d @9000h
JRM Xrom 12d @a000h. Simplex Xrom 16d @b000h
RPN2 Xrom 24d @c000h. ASS3 21d @d000h
PPC Rom Xrom 10d @e000h-f000h
See Info'/Manual PDF.
Was German DM349.00 in 1986. Our price AUD$200.00, includes the above listed 32Kb eprom set, programmed & WORKING.
NEXT ON OFFER IS 3X HP ROMs:
SpecialEquipment.php#EX-IO-ROM
HP EXTENDED-IO IL plug-in Rom
$200.00 Only ONE
Parcel code
0
HP's EXTENDED-IO IL plug-in Rom, Xrom 23, with QREF Card, see the HP's Manual at: HP 82183A Extended I/O Module
Our price AUD$200.00
SpecialEquipment.php#X-FUN-ROM
HP X-FUNCTIONS plug-in Rom
$85.00 Only ONE
Parcel code
0
HP's X-FUNCTIONS PLUG-IN ROM, see the HP's Manual at: HP 82180A Extended Functions Module.
Price was US$75.00 (1982). Our price AUD$85.00
SpecialEquipment.php#CrashRom
Crash Recovery plug-in Rom
$0.00 Sold
Parcel code
0
CRASH RECOVERY MODULE/ROM (short the 2 pins, reset/restore a jammed 41) Referenced in PPC Journal, in the 1980's!
# Uses an empty X Functions Module casing, retaining the rom plug-pins. See PPC Journal extracts.
Was US$40.00 in 1984, Our price AUD$80.00
(As they say on TV's Antiques Roadshow, 'WHERE WOULD YOU EVER GET ANOTHER ONE?')
SpecialEquipment.php#HP41 Module/RomPortCover
HP41 Module/Rom Port Cover
$22.00 each
Parcel code
0
HP41C/CV/CX Cover Module/Rom Port (ORIGINAL HP gear). THERE ARE 4X WHICH CAN BE BOUGHT SINGLY OR WHATEVER.
# Fits in an empty module/rom slot, as dust protector, coachroach & spider home defender - etc.
Our price AUD$22.00 each. (Thats cheaper than The Calculator Store)
SpecialEquipment.php#RomTemplateHolder

Image shows 3x Port Covers & PPC quick reference card, these items not included at this price.
HP41 Module/Rom Holder
$30.00 Only ONE
Parcel code
0
HP41 Module/Rom (3x max') holder & extra template or/& quick reference folder.
# The HP folding holder will fit in the (long) case, along with HP41 & a card reader. # BONUS: 1x Grey HP41 (original) keyboard template with some 'named stickers'.
Our price AUD$30.00 each.
SpecialEquipment.php#BatterySideCover
HP41 Battery Plug-Cover
$12.00 Only ONE
Parcel code
0
HP41 battery side-cover, which covers the battery recharge-plug slot. # An ORIGINAL HP41 item.
Our price AUD$12.00 each.
### MORE HP41 EQUIPMENT WILL FOLLOW AS SOON POSSIBLE !!!
# Continuing with Special Equipment Calligraphy Items:
The Pentel Hyperaser.
SpecialEquipment.php#Hyperaser

Pentel Hyperaser ZE32 ON SALE
$9.35 was $12.50 each
Parcel code
1
This is like 'do mistake erasure with ease'. When an error has been made with ink or gouache on your work, just use the Pentel brand 'Hyperaser'. Anyone who has done serious commission style work needs tools with a professional edge, this is one of THEM. A retractable eraser made with what appears to be fiberglass and other high erasure content. An unusual effect is that while the ink/paint comes off, the paper/card surface almost totally remains unaffected, (best results on hot pressed papers, cards, vellum skin). Buy one to see for yourself.
Retail price $12.50 each, ON SALE 25% OFF AT $9.35.
DISCOUNTED - BLACK REFILLs FOR "PENTEL Hybrid GEL Grip DX" pens.
SpecialEquipment.php#PentelK230Refill

PENTEL Hybrid GEL DX black refill
$1.00 each - CHEAP
Parcel code
0

This is the PENTEL "KFR10" BLACK refill ink that fits the PENTEL Hybrid GEL Grip DX pens.
CUT PRICE PURCHASE, at just $1.00 each, plus post fees to your address.
# SPECIAL ITEM FOR MINATURIST PAINTERS.
MAMMOTH IVORY (of Russian permafrost origin, over 10,000 years old).
SpecialEquipment.php#MammothIvory
Mammoth Ivory 5x4cm
$25.00 each
Parcel code
0

The Ivory is a selected piece without any blemish, cut and matt finished to give an excellent painting surface for miniaturists paintwork. While it would take an expert to distinguish this Mammoth ivory from Elephant ivory, there are no legal or ethical constraints associated with its use.
A 50 x 40mm rectangular shaped piece approximately 0.5mm thick.
Retail price, 1x PIECE ONLY available at $25.00, plus post fees to your address.
# Prior to painting you will see that both sides have an almost identical matt surface texture, there is a very small pencilled cross on one side, this indicates the back side of the ivory.
SpecialEquipment.php#Quill
White Quill dip pen set
$25.00 each
Parcel code 1
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White Quill with fitted dip nib for handwriting or lettering.
A White Goose Feather Quill with fitted dip nib, in a carded gift set. This is the ideal guest book signing pen for your wedding or party. A 30cm/12 inch quill, with fitted metal handle, that uses steel dip ink nibs for handwriting or lettering.
# For a different appearance to the quill/nib set, we offer to swap the 'Bank Style' handwriting dip nib for a 'fancy looking' MacNiven-Waverley handwriting nib, this was the nib used by Rudyard Kipling for his book writing. See the image in this photo
 which has special easy-glide handwriting features.
This carded gift set is $25.00 each.
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Fountain pen, Medium handwriting, Iridium tip stainless steel nib, in a Kraft Cap & Barrel, 3x ink cartridges. ONLY 1x available !
SpecialEquipment.php#KraftFPen
Kraft Brown pen set
$25.00 each
Parcel code
1
Fountain pen, Medium handwriting Iridium (long life) tipped stainless steel nib, in a Kraft Brown tube Cap & Barrel, A boxed set with 3x Blue ink cartridges. This attractive "stubby look" fountain pen is a ONE ONLY set. A short 12cm/4 1/2 inch pen, that uses the same European size ink cartridges commonly fitting Osmiroid, Rotring, Manuscript etc pens.
This boxed set sells for $25.00, only one is available.
50% OFF - SALE ON UNTIL ALL SOLD...
Staedtler Duo Calligraphy marker in Red.
SpecialEquipment.php#DuoMarkerRed
Staedtler Duo Red
$2.50 each
Parcel code
0
![Sale on Selected items]()
Calligraphy practise made easy, with the ultra-hard tipped. double ended marker. Find a 2mm tip one end and a 3.5mm tip the other, each with their own see through pen caps. The dried result is waterproof, with the colour available in Red only.
Retail price MINUS 50% OFF at $2.50 each.
The KDS DC-501 craft knife & blades.
SpecialEquipment.php#KDS
KDS Craft Knife
$4.50 each
Parcel code
1
![Sale on Selected items]()
A craft knife with a removable cap, is a safe craft knife!
This model also comes with a pack of 16x extra blades.
A fine straight tipped craft knife, with a non-slip rubber finger grip.
SALE PRICE 50% OFF ! AT $4.50 each
Kern (Swiss) brand technical pens with Tungsten Carbide (extra hard) tubular tips. IN 2021 OUR STOCKS OF KERN ARE LOW - AS REALLY POPULAR SIZES HAVE SOLD-OUT. THESE WONDERFUL TECH' PENS ARE REACHING THE END-OF-LINE STATUS - WE ARE SORRY BUT THERE ARE NO REPLACEMENTS COMING. IF YOU WANT ANY, NOW IS THE TIME, BEFORE THEY ARE ALL GONE.
A technical drawing pen with refillable ink cartridge, boasting the finest nib/tube on the market. These available pens have tungsten carbide tube nibs. They are complete pens with cap & barrel. Can also fit on compasses with the appropriate adapter.
Retail price $40.00 each.
All sizes SOLD - SORRY, 0.6mm, 1.0mm Tungsten with Cap & Barrel.
SpecialEquipment.php#Kern010TWB
Kern 010 Tungsten With Barrel
$0.00 All sold
Parcel code 1
 0.10mm wide is the finest size tip made, producing the thinest ink lines.
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SpecialEquipment.php#Kern060TWB
Kern 060 Tungsten With Barrel
$0.00 All sold
Parcel code 1

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SpecialEquipment.php#Kern1TWB
Kern 1mm Tungsten With Barrel
$0.00 All sold
Parcel code 1
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Kern (Swiss) brand technical pen with Stainless Steel tip.
A technical drawing pen with refillable ink cartridge. A complete pen with cap & barrel. Can also fit on compasses with the appropriate adapter.
Retail price $30.00 each.
Available in these sizes, 0.13mm extra fine, 1.4mm stainless steel with Cap & Barrel.
SpecialEquipment.php#Kern013SSWB
Kern 0.13mm Stainless With Barrel
$0.00 All sold out
Parcel code 1
 The finest nib/tube on the market. Its stainless steel tube/nib is 0.13mm wide, producing approximately 1/10 of a millimetre ink lines.
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SpecialEquipment.php#Kern14SSWB
Kern 1.4mm Stainless With Barrel
$30.00 Last ONE
Parcel code 1
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Kern (Swiss) brand technical pen with Tungsten Carbide (extra hard) with pen cap & ink reservoir, NO BARREL.
A technical drawing pen with refillable ink cartridge. A complete pen with cap & ink reservoir but no barrel. Can also fit on compasses with the appropriate adapter.
Retail price $35.00 each.
Available in these sizes, 0.1mm fine tip, 0.70mm, 1.0mm.
SpecialEquipment.php#Kern010TNB
Kern 0.10 Tungsten No Barrel
$35.00 each
Parcel code 1

The 0.10mm wide tip is the finest size made, producing the thinest ink lines.
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SpecialEquipment.php#Kern070TNB
Kern 0.70mm Tungsten No Barrel
$35.00 Last ONE
Parcel code 1

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Kern 0.80mm Tungsten No Barrel
$0.00 All Sold Out
Parcel code 1

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SpecialEquipment.php#Kern1TNB
Kern 1.0 Tungsten No Barrel
$35.00 each
Parcel code 1

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Kern (Swiss) brand technical pen with Stainless Steel tip. With pen cap & ink reservoir, NO BARREL.
A technical drawing pen with refillable ink cartridge. Can also fit on compasses with the appropriate adapter. Retail price $25.00 each.
Available in these sizes, 0.60mm, 1.0mm. (Some available with TUNGSTEN tip ONLY - Tungsten is the harder than the stainless steel metal-tips)
SpecialEquipment.php#Kern010SSNB
Kern 0.10mm Stainless No Barrel
$0.00 All sold
Parcel code 1

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SpecialEquipment.php#Kern060SSNB
Kern 0.60mm Stainless No Barrel
$25.00 Last ONE
Parcel code 1

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SpecialEquipment.php#Kern070SSNB
Kern 0.70mm Stainless No Barrel
$0.00 All sold
Parcel code 1

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SpecialEquipment.php#Kern1SSNB
Kern 1.0mm Stainless No Barrel
$25.00 each
Parcel code 1

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SpecialEquipment.php#Kern12SSNB
Kern 1.2mm Stainless No Barrel
$0.00 All sold
Parcel code 1

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SpecialEquipment.php#Kern14SSNB
Kern 1.4mm Stainless No Barrel
$0.00 All sold
Parcel code 1

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SpecialEquipment.php#Kern2SSNB
Kern 2.0mm Stainless No Barrel
$0.00 All sold
Parcel code 1

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Spare Barrel-Handles.
These fit our Kern (Swiss) brand technical pens, as well as all the others, this includes Rotring, Steadtler, Reform, Erograph models, etc. As many of our Kern stocks have no Kern barrels - now is your chance to buy a complete set, although the coloured plastic handles from other brands may be different, they do all fit one screw-on size. A technical drawing pen BARREL ONLY, also fits on tech' pen compass adapters, providing the handle part. Retail price $3.50 each CHEAP.

SpecialEquipment.php#TPBarrel
Technical pen BARRELS
$3.50 each - CHEAP
Parcel code 0

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A Kern accessory technical drawing pen NIB ONLY. With Tungsten Carbide (extra hard) tip. This is an extra NIB ONLY.
Available in these sizes, 0.1mm fine tip, 0.4mm.

SpecialEquipment.php#Kern010TNO
Kern 0.1mm Tungsten Nib Only
$15.00 each
Parcel code 0

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Kern 0.13mm Tungsten Nib Only
$0.00 All sold
Parcel code 0

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SpecialEquipment.php#Kern040TNO
Kern 0.4 Tungsten Nib Only
$15.00 each
Parcel code 0

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A Kern accessory technical drawing pen NIB ONLY. With Stainless Steel tip. This is an extra NIB ONLY.
Available in these sizes, 0.5mm, 0.6mm, 0.7mm, 1.0mm, 2.0mm.

SpecialEquipment.php#Kern050SSNO
Kern 0.5mm Stainless Nib Only
$10.00 Last ONE
Parcel code 0

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SpecialEquipment.php#Kern060SSNO
Kern 0.60mm Stainless Nib Only
$10.00 Last ONE
Parcel code 0

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SpecialEquipment.php#Kern070SSNO
Kern 0.70mm Stainless Nib Only
$10.00 each
Parcel code 0

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SpecialEquipment.php#Kern1SSNO
Kern 1.0mm Stainless Nib Only
$10.00 All sold
Parcel code 0

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SpecialEquipment.php#Kern2SSNO
Kern 2.0mm Stainless Nib + BONUS CAP
$10.00 Last ONE
Parcel code 0

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Reform (German) brand technical pen with Tungsten Carbide (extra hard) 0.35mm fine tip. With pen cap & barrel, with ink reservoir.
SpecialEquipment.php#Reform035TP
Reform technical pen Tungsten 0.35mm tip
$35.00 each
Parcel code
1

A technical drawing pen with refillable ink cartridge. Its tungsten carbide tube/nib is 0.35mm wide, producing 1/3mm ink lines. A complete pen with cap & barrel with ink reservoir. Can also fit on compasses with the appropriate adapter.
Retail price $35.00 each.
KERN PRONTOGRAPH WRITING TEMPLATES.


Sample pictures show the ITALIC style lettering of the 0.35, 0.50 size templates.
Kern Prontograph writing templates are available in 2x sizes. You can use them with these sizes of technical pen;
0.35 tip, 0.50 tip. The style of lettering is slightly leaning, that is, in an ITALIC style.
Actually any brand of technical pen held vertically in these templates will allow writing of the templates lettering. This includes Kern, Reform, Rotring, Staedtler, Erograph etc.
Each template has the CAPITALs, lower case letters, plus most other symbols - like [ ], ( ), ?, +, -, /, * and arrows etc. Another feature of successful neat writing with one of these templates with a tech' pen, is the raised template. It slides above your paper/card on 2 (top & bottom) aluminium rails, this stops wet ink from touching the template as you write. It can also be turned upside down to get reverse characters, with the same effect.
SpecialEquipment.php#KernTmplt035
Kern 0.35mm template
$5.00 Last ONE
Parcel code 0

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SpecialEquipment.php#KernTmplt050
Kern 0.5mm template
$7.00 Last ONE
Parcel code 0

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Last minor update May/June 2023