Re: [AMRadio] HRO question for the day

2009-12-17 Thread ROLYNN PRECHTL K7DFW
Interesting idea, as in boiling off fewer electrons to pile up around the cathode? not clear to me what effect that would have one way or another. === Found here. "AM DEMODULATOR I'm using one of the diodes of th

Re: [AMRadio] HRO question for the day

2009-12-17 Thread ROLYNN PRECHTL K7DFW
> > National decided in the HRO50 design to use a 4.3 Ohm resister in series with the fil of both 6H6 dual diodes, ( noise blanker and detector) dropping the fil to about 5 v. == Perhaps it is for this reason, a method that is used in some other diode

Re: [AMRadio] MCM Electronics digital multimeter for $2.99

2009-09-23 Thread ROLYNN PRECHTL K7DFW
> did you mean $10.49 ? = Enter source code 99RC1 at checkout and the sale price is $2.99. K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www

Re: [AMRadio] Google

2009-04-27 Thread ROLYNN PRECHTL K7DFW
Come on guys. They've done this before on the same date. Today is the birthday of Samuel F. B. Morse (1791). K7DFW __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio

Re: [AMRadio] Is the novelty of the "new" 40mbandwearing offalready?

2009-04-23 Thread ROLYNN PRECHTL K7DFW
> Oh no, that comment is likely to bring out those old buzzards that had to take the code in front of an FCC examiner and draw actual schematics. And damned proud of it. Signed, old buzzard __ Our Main Web

Re: [AMRadio] 75A-2 power consumption

2009-02-19 Thread ROLYNN PRECHTL K7DFW
This shows 85W +/- http://www.collinsmuseum.com/75a2.html K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): h

Re: [AMRadio] Meter Nuts for Hallicrafters BC 610 E or "veryold"Hallicragters XMTR

2008-11-25 Thread ROLYNN PRECHTL K7DFW
Since 1/4-32 is the size of a nut for pots, switches, banana plugs etc, try one from the junk box and see if it works. K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-

Re: [AMRadio] Diode Blocks

2008-06-06 Thread ROLYNN PRECHTL K7DFW
>ED6839 > A diode symbol > EDI 8552 = That's a 1N6839. Plug that into your Google and do the research. K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archive

Re: [AMRadio] Oil filled capacitors

2008-05-19 Thread ROLYNN PRECHTL K7DFW
> JB Weld does not contain any form of metal. .. The MSDS shows that the resin portion of the original J-B Weld contains 10-20% iron filings. http://jbweld.net/techinfo/index.php I wouldn't use it for this application. K7DFW

Re: [AMRadio] substitute RF capacitor in 3-500Z amp

2008-04-05 Thread ROLYNN PRECHTL K7DFW
Make it easy on yourself and get into the ballpark with a Pi Net calculator. They work FB. For those confused about C1. In Pi Net design that is always the input capacitor. K7DFW ..._._ _

Re: [AMRadio] OFF TOPIC POST MOSLEY

2008-02-05 Thread ROLYNN PRECHTL K7DFW
http://www.mosley-electronics.com/page%20files/home.htm __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio He

Re: [AMRadio] Manual

2008-01-17 Thread ROLYNN PRECHTL K7DFW
I try to avoid BAMA if possible. Try this. http://manoman.sqhill.com/hp/index.htm 410B is 30.8 meg and I haven't downloaded it to know the quality. K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing list List

Re: [AMRadio] ER Magazine

2007-12-18 Thread ROLYNN PRECHTL K7DFW
> I just wish that dumb-sounding term "elmer" would go away for good. = The term is part of our history. Why Kalifornicate our heritage? K7DFW ..._._ __ Our Main Website: http://www.amfone.net AMRadio mailing

Re: [AMRadio] My Gates BC-1T Project

2007-06-10 Thread ROLYNN PRECHTL K7DFW
I am thinking, however, of using a backwards 120v/12v transformer in parallel with the 240 VAC primary of the plate supply to feed the antenna relay coil - that way it would switch when I press the front panel play lever as well. Might not be as good, my present set-up gives a slight sequential ti

Re: [AMRadio] BC-1T

2007-05-13 Thread ROLYNN PRECHTL K7DFW
> ...however I wonder if anyone has some ideas of why I would really need K5 in the Gates, that is until I can find suitable replacement. = It's there to provide proper heating of the 866A MV rectifiers (if you haven't pulled them and substituted SS replace