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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Re: where to buy new power transformer?

2008-09-16 by r_j_d_2.phila

thanks scott-lets just say that for safety's sake, i wanted to replace
both the transformer AND the voltage regulators-can you help me read
this schematic?(id rather just do it now while i've got the unit
disassembled). i cant figure out the secondary voltage of the
transformer, or the regulator values.the labeling on the actual parts
is obscured-im putting the ARP 2600 service manual in the files
section-thanks alot guys! 



--- In vintagesynthrepair@yahoogroups.com, scott frye
<painintheamp@...> wrote:
>
> Line voltage ( which drifts up n down) isnt perfect.
> Most devices should still work from line in AC from 105-130 VAC
> I would say that the regulator circuitry after the transformer is
the culprit.
> Unless the transformer voltage is WAY low I would suspect the
voltage regulators.
> If you're just driving circuits that supply +/- 15, there are many
transformers that will work.
> You just need to find one that PHYSICALLY fits and can supply the
current and
> More current available is better than not enough.
> 
> I'm Scott Frye and I approved this message.
> 
> Scott  Frye
> AudioFixation
> Consumer / Pro Audio Repair
> Southern VT 
> 
> "Resistance is futile but.....
> Impedance is much more complex"
>

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