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Hey guys. This amp is in again. Not sure if same issue. However this is an HT5-C. The BMP amps link no longer works. Would someone pls share the schematic if you have it? Thanks!
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Last edited by lowell; 02-02-2018, 08:05 PM. -
Here's a couple. If one of them matches the C, let us know which one it is.Originally posted by Enzo
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I noticed that one of the schematics I have has a note from Nick attached to some part of the bias procedure.When the going gets weird... The weird turn pro!Comment
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You are welcomeOriginally posted by DrGonz78 View Post
Experience is something you get, just after you really needed it.Comment
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It's quite odd. There is no CON1 in this amp. The power tube socket is soldered to the main pcb. So in these schematics... you can see 0v noted between R32/34. But it isn't a ground. This is also the cathode so I'm assuming it SHOULD have a ground/common sign there. I do not get continuity from that point to ground.Comment
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Here we go again with 'ground'.
Look at this schematic crop.
HT 5 Zero Volts.pdf
Chassis Ground is connected to Circuit Zero Volts through this circuit.Comment
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Yeah I know. Sorry for the incorrect semantics. Regardless...I cannot find R32/34 33k bias resistors. And none of the resistors in that area have continuity to the cathode resistor and diode 0v point. I think they changed some of the resistor values and the general bias arrangement on this one.Comment
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If you had a pic of the positive lead placement that would be super awesome! I am doing a first time re-tube of a HT5 Metal and need to bias with smoking the amp or myself! Thank you in advance for all the help thusfar!Comment
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