[HAM] Best 12AU7

[Keith H Clark]

Also,gas,leakage,shorts,low gain...

-----Original Message-----
From: hammond-bounces at zeni.net [mailto:hammond-bounces at zeni.net] On Behalf
Of Scott Hawthorn
Sent: Tuesday, March 11, 2008 11:20 AM
To: The Hammond Forum
Subject: Re: [HAM] Best 12AU7

At 02:22 AM 3/10/2008, Keith H Clark wrote:
>Scott,
>      Check ebay, that's where I got my Hickok 539C. Refurbed and
calibrated
>it. Seems like prices have spiked in the last couple of years though...I'd
>send you mine but it gets too much use :>)

Good idea, thanks. So far, I have gotten around this simply by checking 
voltages around tubes. Would it be safe to sum up the advantages of using a 
tubes tester as
1. Checking output tubes for transconductance (?)
2. Checking input tubes for balance?


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