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Old 03-04-2017, 06:23 PM
andy andy is offline
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Last edited by andy; 11-18-2021 at 05:06 PM.
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Old 03-04-2017, 06:45 PM
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VA561 VA561 is offline
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Just ordered n.o.s. 6BK4A-B and 3AT2 tubes. Is it ok to use a 6BK4A-B in place of the 6BK4?
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Old 03-04-2017, 06:51 PM
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N2IXK N2IXK is offline
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Quote:
Originally Posted by VA561 View Post
Just ordered n.o.s. 6BK4A-B and 3AT2 tubes. Is it ok to use a 6BK4A-B in place of the 6BK4?
Yes, but the 6BK4C is the preferred type, with the best X-ray shielding.
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Old 03-04-2017, 07:03 PM
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VA561 VA561 is offline
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Tried pulling the crt cap off as suggested by Andy. Voltage at the crt anode with cap off, 25K.
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Old 03-05-2017, 02:08 PM
dieseljeep dieseljeep is offline
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Just ordered n.o.s. 6BK4A-B and 3AT2 tubes. Is it ok to use a 6BK4A-B in place of the 6BK4?
Did you remove the HV rect tube socket and check the resistor in there?
Is it jumpered out, like it was recommended in another thread.
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Old 03-05-2017, 04:44 PM
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VA561 VA561 is offline
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Going to tackle it next sat. Excellent advice from everyone. Much appreciated. I want to keep this set for a long time so I want to get it fixed.
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