Re: [Drakelist] Accessory bank for more crystals
Hi Neil, A coupla years back I MADE one, using a 2-pole 16-position(!) rotary switch! I mounted it right on the LH side of my R-4 receiver, attaching it to the enclosure... It worked well enough, but NOT on all crystals---I guess the capacitance of the length of coax cable that I used to interconnect the switch assembly to the back of the rig had a LOT to do with that fact, as the crystals affected worked FB when individually inserted into the sockets directly, at the back of the receiver... ~73~ de Eddy VE3CUI - VE3XZ ** On 2011-09-24, at 8:24 PM, Neil M Califano wrote: Dis I see an accessory crystal bank somewhere for Drake? The bank would hold 10 extra crystals and plug into one of the crystal sockets to provide 20 crystals instead of ten. Is there such a thing? ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Extending Power Switch Life.
Extending Power Switch Life Place a 115 VAC relay in the external power supply, that is keyed by the ON-OFF switch in the rig. This switch is going to be impossible to replace in the future. It takes a beating considering the inductance of the power transformer (just ask the spark coil in your car), and the amount of power going through it. There are soft start circuits out there, but a relay is simple to hook up (4 wires, 16 gauge or better), and cheap. You may have one laying around already. 73s Robert K5LYT Corpus Christi, TX Sunday 9-25-2011___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Loopy noise
I have the R4A audio going to my stereo amp and a terrible humming from the speakers. A ground loop, do you think? ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Loopy noise
On Sun, 25 Sep 2011 14:28:03 -0700 (PDT), Neil M Califano wrote: I have the R4A audio going to my stereo amp and a terrible humming from the speakers. A ground loop, do you think? Yep. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime. HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
