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Re: K100-2 Hiss but no other output [message #21135 is a reply to message #21116]

Tue, 12 August 2014 09:18

Jerrybass1955
Messages: 45
Registered: August 2014
Location: NC

Member

Wow! You guys are a wealth of information. I should be able to start work on this guy tomorrow night and I am looking forward to checking out your suggestions. A couple of follow up questions:

"The schematic for the K100-2 at this site is pretty clear...better than most." - having trouble finding it. Can you give me a link or other ideas to get there?

"tantalum caps" - can you get by with aluminum or polyester caps, or should I order some tantalum caps?

"reverb" - I don't know if it is working. I don't have a foot switch. I guess I can easily use a dummy plug, but I don't remember having to have the footswitch plugged in to get the reverb to work, but that has been about 25 years ago or so. From the schematic, it looks like the switches are open to turn it on though. Correct me if I am wrong. And BTW, does anyone know where to get a real live Kustom footswitch?

Looks like the input transistor might be the culprit. I have hundreds of 2n3904 and 2n3906 - do they seem to be as sensitive to failure from static, etc.?

I took a quick look inside last night and wondered if there is anything holding the circuit board in place other than the pots and maybe the jacks?

First order of business is to get that power cord replaced with a 3 wire. I have a 15 foot cord ordered that should arrive tomorrow and after I get that done, the fun begins.

Thanks for the great tips guys. I'll keep you posted, and keep the advice coming!

Jerry

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[Message index]

		K100-2 Hiss but no other output By: Jerrybass1955 on Mon, 11 August 2014 09:45
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Mon, 11 August 2014 11:22
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Mon, 11 August 2014 11:30
		Re: K100-2 Hiss but no other output By: stevem on Mon, 11 August 2014 12:59
		Re: K100-2 Hiss but no other output By: C4ster on Tue, 12 August 2014 08:40
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 12 August 2014 09:18
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 10:32
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Tue, 12 August 2014 10:55
		Re: K100-2 Hiss but no other output By: C4ster on Tue, 12 August 2014 11:54
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 12:08
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Tue, 12 August 2014 12:38
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 15:37
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 12 August 2014 21:05
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 21:13
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Thu, 14 August 2014 10:35
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 15 August 2014 14:12
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 15 August 2014 22:47
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Sat, 16 August 2014 00:30
		Re: K100-2 Hiss but no other output By: chicagobill on Sat, 16 August 2014 03:07
		Re: K100-2 Hiss but no other output By: stevem on Sat, 16 August 2014 09:15
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Sat, 16 August 2014 21:00
		Re: K100-2 Hiss but no other output By: chicagobill on Sat, 16 August 2014 21:32
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 19 August 2014 12:04
		Re: K100-2 Hiss but no other output By: chicagobill on Tue, 19 August 2014 12:49
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 19 August 2014 22:22
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Wed, 20 August 2014 09:58
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Wed, 20 August 2014 12:02
		Re: K100-2 Hiss but no other output By: chicagobill on Wed, 20 August 2014 13:39
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Wed, 20 August 2014 23:10
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Thu, 21 August 2014 13:52
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Thu, 21 August 2014 16:45
		Re: K100-2 Hiss but no other output By: stevem on Fri, 22 August 2014 06:51
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 22 August 2014 11:44
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Fri, 22 August 2014 15:35

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