[WIham] Working on a Heathkit HW-202

[Tom]

Thanks Nels. My neighbor down the block knew I 
was a ham and gave me some stuff he thought was 
ham gear, but was actually 23 channel CB radios. That's why I have some mics.

I also have this Johnson stand mic. It has a 
Shure magnetic element and a round 4-pin 
connector. Would that work, without a preamp?

And yet, it's labor of love. I have lots of 2 
meter gear around, including a Kenwood Trio 
TR-9000 that I still use for sideband.

Come to think of it, I have a Regency HR-212 2m 
xcvr too. I should see if I can get that to 
play.  It has 6 Tx and 6 Rx crystals in it, and 
uses the same phase modulation scheme and same crystal formula as the HW-202.

How's Dave? I've spoken to him once since he left 
MCTS and went to New Flyer. I think he went to 
New Flyer.  Is he still doing that?

Thanks for the info!

73 de N9QQB



At 08:10 PM 4/13/2015, you wrote:
>Tom,
>
>Just going from memory, the radio probably is 
>phase modulated, not true FM.  Small changes on 
>the 6 MHz. crystal made for enough swing at 146 
>MHz. to deviate the carrier ok.  The receive 
>formula is 45 MHz. times 3 and either plus, or 
>minus, 10.7 MHz.  When that radio was probably 
>built, 146.94 MHz. was used as simplex.  Also, 
>who knows what crystals got changed out before dumping the radio.
>
>The mic was a crystal, or ceramic, high 
>impedance style.  Most older CB mics were 
>ceramic, as opposed to the newer, low impedance, 
>dynamic mics used today.  Any old CB mic will 
>probably work if you can find that round, 2 pin,  connector.
>
>The HC-25U crystals were common to radios like 
>the Regency HR2A, and they might work fine in 
>your radio.  That does denote the case and pin spacing.
>
>Now that you can buy a new HT for well under 
>$40.00, that does VHF and UHF, even out of band 
>stuff, your project is probably just a labor of love.  Good luck!
>
>73, Nels....
>
>On 4/13/2015 7:15 PM, Tom wrote:
>>Hey all,
>>
>>I pulled out a Heathkit HW-202 rockbound  (6 
>>sockets rx, 6 tx) radio that I had been given years ago.
>
>--
>Nels Harvey
>262-241-3769
>Amateur Radio WA9JOB
>
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