Harvard H410T CB27/81 UK FM 2W 40ch handheld CB radio - resurrection from dead 1jul26
Jul 3, 2026•Channel
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Video Details
Published2 weeks ago
Duration1:14:04
Video IDJHAD5ySEtzI
Languageen-GB
CategoryScience & Technology
PrivacyPublic
Made for KidsNo
Video TypeRegular Video
Performance Metrics
Views68
Likes6
Comments4
Engagement Rate14.71%
Likes per 100 views8.82
Comments per 1K views58.82
Description
https://buymeacoffee.com/g0ojf
Here's popular (at the time) 1981 40-channel 2W handheld. Dead set was reported. Upon test I found a short circuit on the 9V regulator line. Replacing the zener reference diode & associated transistor brought back power. The next snag was the short circuit had burnt out the contacts on the on/off switch. Luckily I had the remains of a scrap chassis & was able to harvest a replacement on/off volume control from that. After alignment, the radio slightly exceeded specification. However, the meter turned out to no longer work; there's nothing I can do about that.
I think the set has been over-volted...10 batteries instead of 8? It's in such great condition I just think whatever happemed to it happeed a very long time ago.
Recorded 2nd & 3rd July 2026
Richard, G0OJF
Richard, 2E0FKC (Mr. Chippie)
Lincolnshire, UK
[email protected]
Ebay stuff https://www.ebay.co.uk/usr/g0ojf