Garey: Thank you very much for the information on transceive operation. That certainly clears things up. For now, I'm going to use the R-4B with my Central Electronics 100V, then perhaps later on I'll look for a T-4XB. The only thing I have to do on the R-4B is find out why I have very low audio output, but that shouldn't be too hard to fix, at least I hope not.
73, Jim -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Garey Barrell Sent: Saturday, May 22, 2004 10:30 AM To: Jim DiMauro Cc: Drake List Subject: Re: [drakelist] B-Line vs. C-Line Transceive Operation Jim - The late A and all B line receivers relied on color coded crystals in the transmitter and receiver to keep them "on frequency" in transceive operation over temperature. This is the letter at the end of the serial number on the A and B units. Red, Blue or Green, and sometimes Yellow! In the C line the two oscillators were patched together with the BFO cable, enabling a sort of phase lock between them. Used with a B receiver, the only advantage of the C transmitter is the dual dials rather than the single dial and knob skirt of the B. Everything else is the same. There are a couple of minor circuitry differences, but nothing significant. If you want to transceive in SSB, you want a B transmitter with the same color coded crystal as your receiver. Not easy to do these days! Also, check the actual paint stripe on the crystal, since some were changed back when Drake still offered a crystal exchange. The alternative is to modify a small Xcelite screwdriver to allow you to make the Transceive Align procedure adjustment in the R-4B without pulling the top cover!! 73, Garey - K4OAH Atlanta Jim DiMauro wrote: > Hi All: > > I used to own a C-Line that I foolishly sold about four years ago, and I've > regretted the sale ever since. I vowed to replace it, and I got my first > replacement piece at Dayton last Saturday: an R-4B. Not being intimately > familiar with the B-Line, I've learned that the B-Line has only the INJ line > to slave the xmtr and rcvr together for transceive, unlike the C-Line that > had a BFO line as well. What are the operational and/or practical > implications of transceiving without using the BFO line? What did the BFO > line bring to the party for everyday operation? > > Also, what are the major differences between the B-Line and C-Line xmtrs, > other than the BFO line and meter switch? Is there any reason I would > choose a C-Line transmitter over a B? > > Thanx & 73, > Jim > WA2MER > > ---------------------------------------------------------------------- > Submissions: [EMAIL PROTECTED] > Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > Brought to you courtesy of TLCHost.net http://www.tlchost.net/ > ---------------------------------------------------------------------- > ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ ----------------------------------------------------------------------
