VintageKustom.com
VintageKustom.com is your source for literature and information on the tuck-and-roll vintage Kustom amps from the 60's and 70's, as well as their related products such as guitars and organs . We provide a webboard for help with kustom gear history, technical information and repairs as well as discussions with other collectors.

Home » VintageKustom.com » Repairing Kustom Amps » 1967 Kustom 200A4 update (I'm sure I've bored you all to tears by now...)
Show: Today's Messages :: Polls :: Message Navigator
Return to the default flat view Create a new topic Submit Reply
Re: 1967 Kustom 200A4 update [message #24536 is a reply to message #24535] Thu, 28 January 2016 18:50 Go to previous messageGo to previous message
Shaun_Musings is currently offline  Shaun_Musings
Messages: 323
Registered: April 2009
Location: Reading, MA
Senior Member

Okay, I have put in the correct value transistors, and fired it up. Now, before, I was getting -38.5 volts and 39 volts on the rail. The measurements now are as follows: green wire is 13.75 and 30.51. DC voltage at the output is 20.30. What I note is the absence of a negative reading, which suggests either I need to replace NTE129 and NTE128 because maybe they were having a problem before, or the EBC of a transistor or two is out of line.

Born on the Baaaaayou (Ok, in Massachusetts)
[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: ISO Woodson PA schematic
Next Topic: Repairing/replacing naugahide
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ]

Current Time: Sun Sep 08 08:00:14 EDT 2024