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- Wed Oct 11, 2023 10:27 pm
- Forum: Studio 10 Series
- Topic: Studio 10 EL34 - low output
- Replies: 0
- Views: 7936
Studio 10 EL34 - low output
Hi All, I have a Blackstar Studio 10 EL34 on my bench here with very low output volume. Voltages in the Preamp all seem out of whack - measured voltages as follow (expected values per test point in brackets) Power amp voltages seem OK. TP2 +15v TP3 -15v TP4 +428v (435v) - HT Ref TP5 +398v (390v) - H...