BIT-C-128 Video DAC for Commodore 128/128D, IBM CGA, and Tandy CGA Plus

Where to Buy

There are now three ways to buy the video DAC: buy on eBay for $55, buy on Amazon.com for $50, or buy here and save with PayPal for only $45, plus cheaper shipping, especially when including accessories!

What to Buy

People who want to use Commodore 128 80-column mode or IBM CGA on a VGA monitor usually order:

I offer accessories to help people get up and running quickly, and to save money on shipping when buying items together. If you aren't sure what all you will need or want and/or would like to try the video DAC in unusual applications, please contact me for assistance before placing your order.

To see larger images, click below on the thumbnails or linked text in the item descriptions. Use your browser's "back" button to return to this page.

UseItemPrice
80-
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image of Triad AC Power Adapter BIT-C-128 Video DAC (Digital-to-Analog Converter)
for Commodore 128/128D 80-column output and IBM CGA
Use with external +5 V DC power source and Gonbes GBS-8220 (recommended) or GBS-8200 to connect VGA display, or wire kits to connect slow-scan analog RGB display
$45.00 (Save!)
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image of Triad AC Power Adapter Triad Magnetics WSU050-2000 Power Adapter
Powers Gonbes GBS-8200 or GBS-8220, and video DAC through Gonbes unit or 2-wire kit
input: 100-240V AC at 50 or 60 Hz (worldwide), North American plug
output: +5 V DC @ 2 A with low ripple, center positive barrel connector
Recommended for use in North America
Not compatible with plug adapters listed below
$11.50
International Power Adapter NEW! International Power Adapter, works with snap-on plug adapters
Powers Gonbes GBS-8200 or GBS-8220, and video DAC through Gonbes unit or 2-wire kit
input: 90-264V AC at 50 or 60 Hz (worldwide), folding North American plug
output: +5 V DC @ 2 A with low ripple, center positive barrel connector
Recommended for use outside North America with snap-on plug adapter(s) below
$13.25
image of Argentina Snap-on Plug Adapter for International Power Adapter NEW! Argentina Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of Australia Snap-on Plug Adapter for International Power Adapter NEW! Australia/New Zealand Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of Brazil Snap-on Plug Adapter for International Power Adapter NEW! Brazil Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of China Snap-on Plug Adapter for International Power Adapter NEW! China Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of Europe Snap-on Plug Adapter for International Power Adapter NEW! Europe Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of Korea Snap-on Plug Adapter for International Power Adapter NEW! Korea Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
image of United Kingdom Snap-on Plug Adapter for International Power Adapter NEW! United Kingdom Snap-on Plug Adapter for International Power Adapter
Fits over North American plug
May be used only with International Power Adapter
$1.75
VGA image of Gonbes GBS-8200 Gonbes GBS-8200 (one VGA output)
Converts low-frequency analog CGA from the video DAC to higher-frequency VGA
Includes 2-wire power and 6-wire video cables
about $16 incl. shipping from GearBest
(slow delivery, >2 weeks)
image of Gonbes GBS-8220 Gonbes GBS-8220 (two VGA outputs)
Converts low-frequency analog CGA from the video DAC to higher-frequency VGA
Includes 2-wire power and 6-wire video cables
(Recommended)
about $26 incl. shipping;
search for best price with Google shopping
40-
COL
image of Ambry SDV1 Ambry SDV1 Composite/S-Video to Component Video/RGB Sync-On-Green Converter
Add color in 40-column modes
$80 from Ambry
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image of DE-9 Extension Cable DE-9 Extension Cable
2 m (6.5') long, with molded connectors and tool-free screws
Allows the video DAC to be used at the end of the cable (optional jack screws recommended)
$5.00
image of Hexagonal Jack Screws Pair of Hexagonal Jack Screws
3/16" (4.7625 mm) long
Recommended to fasten the extention cable to the video DAC
Allows mounting the video DAC through panels with thickness of up to about 1/16" (1.5875 mm)
$0.75
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image of VGA-to-BNC Cable NEW! VGA-to-BNC Cable
white, 1.82 m (6') long, with molded connectors and tool-free screws
Connect slow-scan analog RGB monitors with BNC inputs to the 6-wire connector kit (optional hex nuts recommended) – special buy, limited quantity available at this price
$15.00
image of VGA-to-BNC Cable VGA-to-BNC Cable
black, 2 m (6.5') long, with molded connectors and tool-free screws
Connect slow-scan analog RGB monitors with BNC inputs to the 6-wire connector kit
$20.00
image of 6-Wire Signal Kit for VGA-to-BNC Cable 6-Wire Signal Kit for VGA-to-BNC Cable
VGA-style 15-pin D-sub connector with hood and 6 wires with tinned ends
For use with VGA-to-BNC cable and slow-scan monitors (optional hex nuts recommended)
$7.50
image of 2-Wire Power Kit for AC Adapter 2-Wire Power Kit for AC Adapter
Barrel connector to two wires with tinned ends
If not using a Gonbes unit, this allows the power adapter to plug neatly into the video DAC
$5.00
image of Hexagonal Nuts Pair of Hexagonal Nuts
1/4" (6.35 mm) long
Fastens two D-sub connectors inline together
Recommended to fasten the VGA-to-BNC cable to the 6-wire kit
$0.75

Sales Tax

Sales tax of 8.75% will be added automatically when shipping to California addresses.

Shipping and Handling

Orders ship via the United States Postal Service (USPS), which delivers nearly anywhere in the world.

I ship nearly all orders out within 2 business days. Delivery within the United States takes usually about another 3 days, and to the rest of the world could take 1-4 weeks. (I'm looking into speedier options.)

Shipping and handling charges are calculated automatically and based on destination. Economy shipping is also based on weight, and most orders ship as highlighted below.

USA Domestic Economy
(First Class Mail)
Weight
(pounds)
Rate
(USD)
0.00-0.06 lb$0.75
0.07-0.15 lb$5.00
0.16-0.88 lb$7.50
0.89-1.00 lb$12.00
International Shipping Rates (USD)
Weight
(pounds)
Destination
CanadaMexicoothers
0.00-0.50 lbs$10.00$12.00$14.00
0.51-2.00 lbs$16.00$22.00$23.00
2.01-3.00 lbs$25.00$32.00$35.00
3.01-4.00 lbs$37.00$43.00$50.00

Shipping via USPS Priority Mail is now available to USA destinations, and should be selected for orders weighing more than one pound.

If you wish to place an international order weighing more than four pounds, please inquire using the contact page.

Warranty

I warrant everything I sell to be free from material defects in components and workmanship for at least one year, and will repair or replace (at my discretion) any defective product including shipping costs, provided that the video DAC is powered with nominally 5 volts as specified.

If you accidentally break something and it wasn't due to a defect, please contact me and I will do what I can to fix it.

Satifaction Guarantee

If you are unhappy with any product for any reason other than a defect within 90 days (or longer, at my discretion), simply pay return shipping and receive a full refund. (In the United States, please use insured first class mail.)

Questions?

If you have any questions or comments, or would like help ordering or chosing the right accessories for your application, please contact me.


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