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Blown 300B, help requested [resolved]
Blown 300B, help requested [resolved]
Bobinsms112
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Bobinsms112
Jr. Member
Posts:
18
Re: Blown 300B, help requested
Reply #15 on:
June 18, 2022, 10:17:24 AM
x pad B side = 204 (left channel)
x pad B side = 297 (right channel)
I reheated several joints on the board and checked the resistances on the sockets and they match the other side.
Thanks,
Matt
Paul Birkeland
Global Moderator
Hero Member
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19823
Re: Blown 300B, help requested
Reply #16 on:
June 19, 2022, 05:52:24 AM
This is the pad of interest. The voltages you reported wouldn't make a lot of sense for this spot in the circuit.
Paul "PB" Birkeland
Bottlehead Grunt & The Repro Man
Bobinsms112
Jr. Member
Posts:
18
Re: Blown 300B, help requested
Reply #17 on:
June 19, 2022, 10:47:07 AM
Hi Paul, you are correct. I re-checked and the x pad = 2.49 on both channels.
Thank you,
Matt
Paul Birkeland
Global Moderator
Hero Member
Posts:
19823
Re: Blown 300B, help requested
Reply #18 on:
June 19, 2022, 11:01:04 AM
Well, the last debugging step is to trade boards between channels to see if the problem follows a board (it probably will), and if so I would just order a replacement.
Paul "PB" Birkeland
Bottlehead Grunt & The Repro Man
Bobinsms112
Jr. Member
Posts:
18
Re: Blown 300B, help requested
Reply #19 on:
June 26, 2022, 11:17:41 AM
Hi Paul, looks like it followed the board. Will order a replacement board and post back once i can get it hooked up.
Thanks
Matt
Bobinsms112
Jr. Member
Posts:
18
Re: Blown 300B, help requested
Reply #20 on:
July 17, 2022, 01:52:37 PM
New board in and fired her up - all good now. Thank you Paul for your assistance!
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Blown 300B, help requested [resolved]
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