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Re: Early 4 Line supplies


 

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Is this PS list correct?

Note: The lettering only refers only to installation in a MS-3 or RV-3,

there's no mention of a MS-4 or RV-4 (it lacks the early AC-3 choke).

PARTS LIST

(2) 150ufd @ 400v

(2) 40ufd @ 150v

(1) 100ufd @ 150v

(1) 100ufd @ 400v

(3) Diode 2.5 amp 1000 volt rectifier diode (1N4004 or 1N4007)

(3) Resistors - 150K @ 1 watt

(2) Resistors - 200 Ohms @ 10 watts (in parallel) - R3


On 1/27/25 15:07, Gary WB6OGD via groups.io wrote:

Don't waste money on those pcb rebuild kits.
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I was able to put new (and cheaper) radial caps under the chassis.? New caps are waaayy smaller!
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See the photos of an AC-3 I rebuilt a few years ago.? The new caps, diodes, etc. fit the existing
terminal strips like they were made for them.
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And someday in the distant(?) future it will be easier to replace the caps than it would be if they were
on a pcb.
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The AC-3 has a big resistor.? It got too hot under the chassis so I mounted it on top and made an
aluminum heatsink/safety shield over it.
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Even though this was an early Drake supply, I paired it with a TR-4C and it worked great.? The AC-3
is actually a better supply with its big choke.
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73,
Gary
WB6OGD
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