http://wa5bxo.shacknet.nu/N2DTS/
Pictures 53 to 57 show the rig in more detail.
I have coils for 80 and 40 meters, the rig is silent,
no fans or variac hum, the power supply is selectable
on the front panel between 1200, 1300, or 1500 volts roughly.
The rig needs about 20 watts of RF drive, and about 15 watts
of audio drive (8 ohms), to give around 300 watts carrier out.
All the parts are at the kilowatt level, nothing gets
warm or will crap out even if you left it keyed up for a year.
Step start is built in, along with push to talk, and negative
cycle loading.
Everything is metered and adjustable.
The mod transformer is an old RCA that seems to sound
VERY good, 10,400 ohms to 4350 ohms.
The power transformer matches the mod transformer, RCA...
The power supply diodes are 14kv at 1 amp each, and there are
4 of them in half wave center tapped setup.
Final tubes can be 811, 812, 572b.
Brett
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bob Maser
Sent: Sunday, June 25, 2006 11:30 AM
To: Discussion of AM Radio
Subject: Re: [AMRadio] Stuff for sale...
Hi Brett, I am interested in you 812 transmitter. Can you
send more pics of
it?
Bob Maser
W6TR
Valrico, FL
----- Original Message -----
From: "Brett gazdzinski" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio'" <[email protected]>
Sent: Saturday, June 24, 2006 8:16 PM
Subject: RE: [AMRadio] Stuff for sale...
>
> I am trying to clear out the shack a bit, and
> have some stuff for sale:
>
> Icom 756 pro, with power supply, $1500.00, general coverage
transmit mod
> done.
>
> Homebrew 812a rig modulated by 811a's, in rack cabinet $2000.00 ?
> http://wa5bxo.shacknet.nu/N2DTS/Picture%20005.jpg
>
> Textronics 2465 4 trace 300 MHz O scope, $500.00
>
> Gonset G76 with ac supply, manual, $150.00
>
> Galaxy DX99v, 15 watt am cb/10 meter mobil, does AM, ssb, fm,
> has freq readout along with channel numbers, and other CB
stuff, $200.00.
>
> CVM5 mod transformer, $150.00
>
> 50 Henry 400 ma reactor (Peter Dahl) $75.00
>
> Samson 60 watt per channel audio amp, rack mount, about 1 inch high,
> great to drive modulator grids in a small space, $100.00.
>
>
> Email me for more info at [EMAIL PROTECTED]
>
> I can take digital pictures of anything anyone is interested in...
>
> Brett
> N2DTS
>
>
>
>
>
>
>
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______________________________________________________________
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______________________________________________________________
AMRadio mailing list
Home: http://mailman.qth.net/mailman/listinfo/amradio
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:[email protected]
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