Glad you got it fixed.
Harvey
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On 3/10/2021 1:19 PM, Thierry Delaitre via groups.io wrote:
Thank you
Testing Q794 on a transistor tester was showing Hfe as 4 whilst Q784 was showing a Hfe of nearly 200.
I sourced some 2N4122 and replaced both of them and the 7B50 is back to life :-)
Many thanks and really appreciated your help and from the forum
Whilst I was troubleshooting the 7B50. I remembered I had a 7B92 which is also faulty but that one never worked since I had it. I'll open a separate thread for it
Thierry
