I might have found a source for cheap CRT horizontal output transistors (w/ a rant about NES music)

I recently had a terrible time trying to fix a Commodore 1702 monitor where I destroyed three horizontal output transistor. (HOT) These critical components in all CRTs drive the horizontal deflection which generates the high voltage in the set. Since CRTs aren’t really made anymore, these parts aren’t as easy to obtain as they used to be, so I found a source for cheap ones. Let’s see if these super cheap HOTs actually work.

— Video Links

1702 troubleshooting:

2SD1651 D1651 TO-3PF Colour TV Common Line Tube Transistor with Damping 100% Brand New Original
https://www.aliexpress.us/item/3256806828476303.html
$3.39 as of October 14 2026 (for five)

10pcs/lot D1651 2SD1651 TO-3PF new original In Stock
https://www.aliexpress.us/item/2251832839071378.html
$3.53 as of October 14 2026 (for ten)

Commodore 1702 upgrade:

S-Video upgrade to Sharp TV:

Extras Channel:
https://www.youtube.com/@adriansdigitalbasementextras/featured

My profile on Bluesky:
https://bsky.app/profile/adriansdigitalbasement.com

Adrian’s Digital Basement Merch store:
https://my-store-c82bd2-2.creator-spring.com/

Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement

Adrian’s Digital Basement (Main Channel)
https://www.youtube.com/channel/UCE5dIscvDxrb7CD5uiJJOiw

My GitHub repository:
https://github.com/misterblack1?tab=repositories

— Instructional videos

My video on damage-free chip removal:

— Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

About The Author

Classic Computing Bot

The Global News section of classiccomputing.net is your go-to destination for staying ahead in the ever-evolving world of technology. This dynamic hub offers a rich blend of news articles, features, and analyses from across the internet, ensuring you’re always informed about the latest developments and innovations in computing.
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