[Drake] Drake L-75 Amplifier Question

[D C _Mac_ Macdonald]

It appears that my L-75 may be a later production run, because the two fuses show as being in series with both legs of the 240 Volt wiring set up.

It sure would be nice to get an up-to-date schematic for my L-75.


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* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* Oklahoma City, OK *
* USAF, Ret'd 61-81 *
** FAA, Ret'd 94-10 *
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________________________________
From: ROY SPANGENBERGER <rspange at optonline.net>
Sent: Monday, February 20, 2017 13:57
To: D C _Mac_ Macdonald
Subject: RE: [Drake] Drake L-75 Amplifier Question

The manual that I found shows only one fuse, also. If you are running on
110VAC, and both fuses are available, I would just fuse both sides if
two fuses are located on the back, and per the instructions use 20A
fuses. Roy, KC2DMH.


On Mon, Feb 20, 2017 at 11:31 AM, D C _Mac_ Macdonald wrote:

> Several years ago, I bought a "new" L-75 amp on eBay.  It turned out
> that it was really new, but had never been used.  Plate transformer
> came in its unopened original shipping box.  The L-75 had been opened,
> but the 3-500Z tube had been removed, along with the plate cap and
> parasitic suppressor.
>
>
> I have replaced all the missing components and am planning to slowly
> bring plate voltage up to hopefully reform the never used electrolytic
> filter capacitors.
>
>
> I am a bit puzzled by the primary 120.240 Volt primary fusing.  The
> repro manual I have shows a single primary fuse, but my amp (S/'N 286
> w/ build date of May 14, 1981) has TWO fuses on rear panel.
>
>
> Does anybody have a schematic in a forwardable format of the amp with
> two rear panel fuses?
>
>
> * * * * * * * * * * *
> * 73 - Mac, K2GKK/5 *
> * * * * * * * * * * *