ampage Tube Amps / Music Electronics	For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

Bias King Question

:

8/23/1999 4:47 PM
Brute	Bias King Question I live in a small town and the nearest competent amp tech is 150 miles away. I'm thinking of buying a Bias King. Has anyone used one of these? I'm a low-tech sort of guy and I'm wondering if I can successfully re-bias my Fender Twin.

8/23/1999 9:00 PM
BWilliamson	I like the Swamp Probes, the only difference is you will need a DVM. If you don't have one, getting a 1/2 way decent DVM will run you over the price of the bias king. Devices like this are a pretty handy DIY tool. bw

8/23/1999 11:11 PM
pgambon	I considered the bias king, but got the Allesandro probe instead. I think it was $99 delivered. Works fine, simple to use. It only works on octal socket tubes (ie TwinRV). Look in Vintage Guitar under Hound Dog Amps.

8/24/1999 2:58 AM
R.G.	- or build one for youself from the bias probe schematic at GEO.

8/24/1999 3:54 AM
Marc	your parts with an LCD will run you about $30.00. If your willing to spend a couple hours putting it together...agood weekend project GEO's got the info too for biasing with a probe.. GO for it!

8/24/1999 8:57 AM

BW:

I'm not sure about the decent DMM's but you can get the indecent ones really cheap these days (like around $30 for most of the ranges you'd need). So where is Charles (the Swamp Probe guy) these days? Haven't seen his posts here for awhile. (Last I heard his Swamp Probes were around $30 for one or $50 for a pair. And you would need a DMM with a dc mA scale since his probes don't use the 1.0R 1% cathode resistor.)

Steve Ahola

8/24/1999 11:47 AM

MIA--Charles the Swamp guy

quote:
"So where is Charles (the Swamp Probe guy) these days? Haven't seen his posts here for awhile."

Well, he's got his own little board on his site he's been maintaining since the Ampage crash. He's also quite busy at the FDP. I think he really digs them old Fenders so he found a new home there.

Their gain, our loss

bw

Page 1 of 3