[1000mp] Maintenance and Repair of the Mark V FP-29 PSU

[Harold Mandel]

Now the chore is to find a linear 50 volt supply for the Yaesu FT-2000
that uses 13.8 and 50.0 Volts.

I'm looking for an old Telco charger for -48V battery supply
and will replace the caps and use the Astron 70M for the 13.8
side of the supply, as the '2000d uses a switcher, too.

Hal
W4HBM

 

-----Original Message-----
From: Rob Atkinson [mailto:k5uj at sbcglobal.net] 
Sent: Saturday, January 26, 2008 3:50 PM
To: Harold Mandel
Subject: Re: [1000mp] Maintenance and Repair of the Mark V FP-29 PSU

okay hal thanks.   i just needed a rough idea, not an exact amount.   I 
think you sent something with some figures to the reflector.   it's 
good to know there's an alternative to the yaesu supply, which I'm using
for now since it's still working, knock on wood.

the new thing i've heard is wall warts are chinese switchers now and
radiate hash like crazy.

73

rob / k5uj

On Saturday, January 26, 2008, at 01:06  PM, Harold Mandel wrote:

> Oh, Christ,
>
> That was over a year or two ago.
>
> I've had to move three times since then and all the stuff is packed up

> in crates, three hundred miles away, Rob.
>
> Okay, here's the story:
>
> I called Astron and had them send me a 70M and the largest
> 28 volt supply. The 12V, (70M) has meters, but the
> 28 volt doesn't. I added a fan to the 12v job, too.
>
> Now through all this I'm trying to remember how much I paid for them, 
> rattling the charcoal as it were, but nothing's emerging. It was less 
> than 800 bucks for the Yaesu switcher, that's for sure! (I despise 
> switchers. We have a thirty percent failure rate on that junk here in 
> the telephone company. And now they're buying Delta modules from 
> China.)
>
> So solly, Cholly. Ain't got a clue.
>
> Ahh, the models: RS-70M and RS-25A. Original heavy iron.
>
> 73, Hal
>