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Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Leak Tl/12+
Leak Tl/12+
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Old 5th March 2008, 09:30 PM   #1
flyinglemur is offline flyinglemur  Canada
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Default Leak Tl/12+

Delighted to say, I rescued one from under a workbench in college today, has been kicked around for years. I think, all we need is to replace the valves (college has mounds of them), check the circuitry and off we go
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Old 6th March 2008, 06:38 AM   #2
ray_moth is offline ray_moth  Indonesia
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Assuming you're serious (I can't tell whether you're kidding or not!), please take care. Look for signs of damage or burning and be prepared to replace components affected.

Be aware that there's a more than even chance that some capacitors, especially electrolytics, will not perform well. Some resistors can also have drifted out of spec. Electromechanical contacs (switchs, plugs and sockets, tube holders) may need cleaning. Transformer windings should be checked for continuity.

I'm sure other people can suggest plenty more cautions before assuming that it will work.
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Old 6th March 2008, 06:51 AM   #3
flyinglemur is offline flyinglemur  Canada
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Much appreciated, I have more than enough access to caps/resistors etc, and had planned to replace the valve sockets anyhoo. The iron *seems* to be in good nick - will get down to analyzing it later

L
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Old 6th March 2008, 01:29 PM   #4
kevinkr is offline kevinkr  United States
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Leak Tl/12+
I've worked on a number of Leak amplifiers and you can be assured that most components will have drifted out of spec by this point in time, and I would not power it up at all without first replacing all of the electrolytics and coupling caps - I'd check all resistors as well at this point and replace any that are off.
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Old 6th March 2008, 09:06 PM   #5
flyinglemur is offline flyinglemur  Canada
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Duly noted - I've access to almost every resistor and cap imaginable (college stores ), so I'll start after my own amp is complete.
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