Tandy Color Computer TRS-80 Extended Color BASIC ROM upgrade Coco 1 2 Colour

US $32.75
ApproximatelyS$ 42.69
or Best Offer
Condition:
not specified
This is a Brand New EXTENDED COLOR BASIC Rom upgrade for your Coco 1 or 2. Some of the lower memory ... Read moreabout condition
19 available32 sold
People want this. 48 people are watching this.
This one's trending. 32 have already sold.
Shipping:
US $8.99 (approx S$ 11.72) USPS Ground Advantage®.
Located in: New Milford, Connecticut, United States
Delivery:
Estimated between Wed, 19 Nov and Sat, 22 Nov to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Returns:
No returns accepted.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
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Seller assumes all responsibility for this listing.
eBay item number:196829362461
Last updated on Oct 19, 2025 22:55:48 SGTView all revisionsView all revisions

Item specifics

Seller Notes
“This is a Brand New EXTENDED COLOR BASIC Rom upgrade for your Coco 1 or 2. Some of the lower memory ...
Country of Origin
United States
Compatible Brand
For Tandy
Brand
RadioShack
Type
ROM UPGRADE
Vintage
Yes
Category

Item description from the seller

About this seller

verault

99.3% positive feedback4.3K items sold

Joined Mar 2000
Usually responds within 24 hours

Detailed Seller Ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.8
Shipping speed
5.0
Communication
5.0

Seller feedback (1,892)

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  • c***y (139)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    TRS-80 CoCo 1/2 ECB IC. Shipped Fast. Quality: A. Packing: B+, bent pins. Overall: Happy :). Fair warning, the chip will only stay in the socket if you leave the pins long due to the difference in strength between square pins and flat pins. Personally, I am going to remove the original 24-pin socket and solder this 24-to-28 converter board in its place and put a proper 28-pin IC socket ($0.50) on it to place the new ROM chip in. I have a CoCo1 F-board.
    Reply from: verault- Feedback replied by seller verault.- Feedback replied by seller verault.
    Well I am happy you like the Rom upgrade board. Of course you can go ahead and directly solder this adapter board to your motherboard, however you need to understand this is made for folks who dont want to solder or do not possess soldering skills. Its meant to just plug into the socket. So I really dont know why you leave a warning mentioning people should leave the pins long. Nowhere do I say anyone should alter or cut the pins. No one should cut or shorten the pins at all under any situation.
  • 2***l (105)- Feedback left by buyer.
    Past year
    Verified purchase
    Took a bit to ship, but I suspect that is because it had to be made first. Popped this in to my TRS-80 CoCo2 26-3026 with a 8709416 Rev B board. The pins on the adapter are longer than the socket can handle, but that works out because there is a capacitor sitting so close to the socket that mashing this all the way in is not possible. After getting this seated, I turned on the TRS and boom... instant ECB 1.1! Super easy to install. Good quality and packaging. Very happy with my purchase!
    Reply from: verault- Feedback replied by seller verault.- Feedback replied by seller verault.
    Your item shipped out according to the time posted in the listed. I never ship anything late and you are correct; I make EVERYTHING I sell to order. You buy it. I make it and test it then ship it. Thats reflected in the shipping times of all my orders. Glad you got your system up to ECB 1.1. And you are right, a bunch of boards on the coco 2 have something immediately near the socket which would cause a problem. The adapter doesnt have the issue and fits tightly.
  • w***d (203)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Just as described; perfect packaging; great value; great seller!
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