[Drake] S-meter

[Mark Nace]

Just remember to use the right meter in there.  TR-3 meters (plate and S-) are 85 ohms, and TR-4 series plate and S- meters are 200 ohm.  
Mark
N5KAE

 


----- Original Message ----
> From: "bonddaleena at aol.com" <bonddaleena at aol.com>
> To: drake at mailman.qth.net
> Sent: Thursday, October 2, 2008 7:09:45 PM
> Subject: [Drake] S-meter
> 
> Hi. Long time since I've posted to this list. A recent posting brought 
> the 'ole brain back to life.....
> I 'might' have asked this before, so excuse me ahead of time if I have. 
> (got CRS, you know...ha ha)
> 
> Anyway, I have quite a nice Drake collection. I have a mint TR4-CW and 
> also what I have nicknamed, "The World's UGLIEST Drake", a TR-4C.
> 
> I bought this radio off of ePay, er. eBay a couple of years ago, for 
> cheap. I bid on the poor thing, because it came with a pretty nice 
> RV-4C.
> 
> The radio was honestly described as 'awful'. It appeared to have spent 
> some of its life under water. ha ha. Anyway, I got the radio cheap (no 
> shipping) and the RV-4C, Power Supply, etc.
> The radio IS, (I hate to say 'FUGLY'), mismatched knobs and all. 
> However, I realized it had a good noise blanker, which I put in the 
> TR-4CW. I modified the RV-4C into a RV-6 with new dials, etc.
> I just could NOT bring myself to part out the old girl. Finally (!!), I 
> got the radio working. Believe it or not, it plays as well as the rest 
> of my Drakes, with one exception: the s-meter is VERY scotch.
> 
> I have studied the schematic, the theory of operations, even SWAPPED 
> meters and it still reads low. The actual sensitivity is the same as 
> the other Drakes, the s-meter just reads low, but it DOES function. I 
> have replaced all the pots, etc in the s-meter circuit, but nothing 
> helps.
> 
> Anybody have ANY ideas???
> 
> By the way, the radio is SO ugly, that I will NOT even try to restore 
> it. And believe me, I CAN polish a tu*d and make it look new. I just 
> keep it in this condition to show my buddies. Yes, it is covered!!! ha 
> ha
> 
> 
> thanks, sorry for the long description, but, you know.....
> 
> 
> ron
> 
> N4UE
> 
> ______________________________________________________________
> Drake mailing list
> Home: http://mailman.qth.net/mailman/listinfo/drake
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Drake at mailman.qth.net