[ARC5] Just when I though I was done with the BC653...

[J Mcvey]

I meant BC659 of coarse, it's late... but this thing has a multi-voltage battery inside which is pure unobtainium these days, soI've got to figure something out if I want the transmitter to work.  
It's 4.5v, 25.5V and 80V
 

    On Thursday, June 9, 2016 11:23 PM, Dennis Monticelli <dennis.monticelli at gmail.com> wrote:
 

 Well, even some ham transmitters used a bias battery on a line operated rig.  It was cheaper and easier than making a negative supply.  Of course when you go to restore the rig you have to deal with the mess left by the old battery.
Dennis AE6C
On Thu, Jun 9, 2016 at 7:09 PM, J Mcvey via ARC5 <arc5 at mailman.qth.net> wrote:

I found another reason to dislike this radio!  It's not enough to to use the Jeep battery to run this clunker. No, they included an INTERNAL battery that runs some of the audio and transmitter function! 
When I replaced the bad mixer, the RF stuff all sprung to life and it was all of 30 seconds to peak it up.  Great, but no audio. Upon looking at the scematic I found that it was indication a battery , which I initially ASSumed that there was an adaptor plug or something that bypassed the need for it when it was running on the jeep battery. NOT THE CASE!!!
Tomorrows challenge is to figure out the best way to do a work around.  Looks like -4.5V will get the receive audio to work, then on to tx issuse which seems that they made some kind of bizzare setup with the battery. 

My guess it they designed it this way to get a future battery contracts with the Army.  War be dammed, these guys were making money!

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