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 Post subject: PENDING: Dynaco ST 70 for Tube Amateur Transmitter
PostPosted: Sep Mon 24, 2018 8:42 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 786
Location: Walden, NY USA
I have the above amplifier, but no pre amp. Seems to be working as I get low sound from turntable with 8 ohm speakers connected. No hum. Has new rectifier tube and selenium rectifier was replaced with a 4007 diode. Has original caps.

I would like to get a ham tube phone transmitter or transceiver in working condition in trade. Preferably a Hammarlund, but all considered.

Will send photos on request

Thank You!

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Mike
W2MDM
http://mikesradiosandstuff.weebly.com/index.html


Last edited by Mike DeMeo on Oct Tue 02, 2018 2:36 am, edited 1 time in total.

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 Post subject: Re: TRADE: Dynaco ST 70 for Tube Amateur Transmitter
PostPosted: Sep Thu 27, 2018 3:10 am 
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Joined: Jan Mon 12, 2009 7:38 am
Posts: 1211
Location: homestead, fl
edited below


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 Post subject: Re: TRADE: Dynaco ST 70 for Tube Amateur Transmitter
PostPosted: Sep Thu 27, 2018 11:17 pm 
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Joined: Jan Mon 12, 2009 7:38 am
Posts: 1211
Location: homestead, fl
thought it was a tx only but turns out its a drake transceiver.

rig i have a drake TR4-C with AC-4 power supply. i have plenty of pics if interested. it looks untouched inside and all original. didn't see anything blown up in either unit. will obviously need a recap of E-caps as its all original. i have plenty of pics i can email if interested. i have not powered it up. part of estate purchase. i dont like powering up old rigs like this until all the lytics are replaced.


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 Post subject: Re: TRADE: Dynaco ST 70 for Tube Amateur Transmitter
PostPosted: Sep Fri 28, 2018 2:30 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 786
Location: Walden, NY USA
Yes. I would like to see some pics. I would rather have a transceiver
I am away from home but will be back Monday. I can send you some pics of the amp when I get home .
Thanks

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Mike
W2MDM
http://mikesradiosandstuff.weebly.com/index.html


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 Post subject: Re: TRADE: Dynaco ST 70 for Tube Amateur Transmitter
PostPosted: Sep Fri 28, 2018 3:56 pm 
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Joined: Jan Mon 12, 2009 7:38 am
Posts: 1211
Location: homestead, fl
PM sent.


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