Bottlehead Kits > Kaiju Stereo 300B amp
Issues with driverboard testing [resolved]
ericoto:
I was looking this over andhave found a problem this morning 1 of the diode's off the power transformer secondary appears loose, possibly a cold joint I did not have time to correct it but will try that when I get home this evening. Could that explain the problems?
Paul Joppa:
Yes, that could explain the problem. The two diodes make up a voltage doubler, so if one of them is disconnected ... :^)
Paul Birkeland:
--- Quote from: ericoto on January 01, 2024, 06:20:47 PM ---Thank you for getting back to me so quickly. I did recheck the choke connections, they appear to be in the right place 35L and 43L,
--- End quote ---
This is absolutely not correct, as this red wire isn't connected to anything and can short out the HV supply.
ericoto:
yes, I did note that previously and did correct that, since then I have resoldered on both sides. I'll send you a picture of it when I get home. I'll also resolder the diode to see if that helps. Are the resistances on the chokes okay?
Paul Birkeland:
Yes, those are good resistances. The remaining resistors will go on the amp as you wire in the remaining connections on the output transformers.
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