[HAM] Re: hammond Digest, Vol 4, Issue 6

[Gary Allsebrook]

An oscilloscope is an excellent way to check for ripple and leaky caps,
although you could probably use an AC voltmeter if you know the acceptable
ripple specs.  The caps to be most concerned with are the big chassis
mounted can types.  If you are not familiar with working with high voltage
circuits please hire a qualified tech to do the work - it's not worth your
life.  Even if the organ is solid state and runs on low voltage DC, the
large filter caps are always in the vicinity of the rectifiers and mains
voltages.

-----Original Message-----
From: hammond-bounces at zeni.net [mailto:hammond-bounces at zeni.net]On
Behalf Of gandj
Sent: Tuesday, November 04, 2003 6:09 PM
To: hammond at zeni.net
Subject: [HAM] Re: hammond Digest, Vol 4, Issue 6


> Power supply filter caps could be a likely cause for this.
> erno palonheimo, lousy keyboardist & 2nd-class tech

Anyone have some pictures, or even a clue of how I can tell what and where
these are on the organ? Anyway I can check if they are damaged?

>Sounds pretty much like a T-5xx series spinet. These have tonewheel
>generator and scanner vibrato, but the amplifier section is solid-state
>and has aggressive keyclick filtering.

Any pictures of these "T-5s" I can't find it listed anywhere. If I had to
guess, I would have said it was half (tonewheel) and half (solid state).
What is keyclick filtering? Sorry about this, I will be taking electronics
in about a year, but for now, I know nothing. Sorry to be so ignorant, and
thank you for your help.

Lounge Lizard


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