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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: I am shocked! posted by jedrider on July 21, 2012 at 16:31:58:
I finally had the patience to look at the solder connections of the socket of the failing tubes, and I can already see one subpar solder joint. That's all it would take. I can't see the bottom half of the tube socket until I buy an extractor tomorrow to remove one of the stripped screws. That exonorates the bias pot, bless it's soul!
I am going to replace the out-of-spec bias resistor with some el-cheapo 1-watt metal films so I can set the bias to a known amount. I would be nice to have a meter on the amplifier and not have to unscrew the covers to adjust bias -- my next amplifier -- ha, my wife would say!
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Follow Ups
- Solution in sight! - jedrider 22:40:28 07/21/12 (12)
- RE: Solution in sight! - drlowmu 23:01:50 07/21/12 (11)
- Not a Happy Ending - jedrider 16:27:15 07/22/12 (7)
- Sorry to hear it - 1973shovel 17:11:22 07/22/12 (5)
- I'm looking for a Variac now - jedrider 07:48:11 07/24/12 (4)
- RE: I'm looking for a Variac now - drlowmu 19:17:26 07/24/12 (3)
- Calm down - jedrider 07:09:12 07/25/12 (2)
- RE: Calm down - Tre' 19:30:27 07/26/12 (0)
- Calmed - drlowmu 16:05:20 07/25/12 (0)
- Sorry, but the fat lady ain't yet sung...... - drlowmu 17:03:27 07/22/12 (0)
- RE: Solution in sight! - Jim McShane 11:21:59 07/22/12 (2)
- RE: Solution in sight! - drlowmu 12:36:21 07/22/12 (1)
- RE: Solution in sight! - Jim McShane 13:35:59 07/22/12 (0)
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