[AMRadio] new tubes for sale

Hi Guys: We have acquired another batch of tubes, some new, some used. There are too many to list them all at one time. This is a list of new tubes in the original boxes. We will list the used ones in a couple of weeks, after the dust clears from this sale. We will warrant all of these tubes for

Re: [AMRadio] circuit info

No, not yet. Thank you. Ed On Tue, 27 Feb 2007 14:27:52 -0600 Geoff/W5OMR [EMAIL PROTECTED] writes: Edward B Richards wrote: Hi all; I want to build a QRP (5 watts) AM transmitter for 160 meters. I would like a crystal oscillator, buffer, PA and modulator. I am too lazy to do a

Re: [AMRadio] circuit info

Thanks, Jim. Ed K6UUZ On Tue, 27 Feb 2007 15:00:17 -0800 (PST) Jim Candela [EMAIL PROTECTED] writes: Ed, Try these Piss Weak circuits: http://www.amwindow.org/tech/htm/pw.htm Jim JKO __ AMRadio mailing list List Home:

Re: [AMRadio] info wanted on 4-400 linear amplifier

Thanks, Tony. Ed K6UUZ On Tue, 02 Aug 2005 23:06:07 -0400 Anthony W. DePrato [EMAIL PROTECTED] writes: Ed: the Johnson Thunderbolt is a AB2 amp that uses 4-400A's check out this amp i think you might like the layout it uses a roller inductor instead of a varicap. 73 Tony wa4jqs

Re: [AMRadio] info wanted on 4-400 linear amplifier

Thanks, Jim. Ed K6UUZ On Tue, 2 Aug 2005 20:07:29 -0700 (PDT) Jim Candela [EMAIL PROTECTED] writes: Ed, I always admire those about to undertake such a project. I don't have a circuit for you, but I will share a few ideas. If you do use grid driven, it will likely need to be class

[AMRadio] info wanted on 4-400 linear amplifier

I am planning to build a linear amp around a grid driven 4-400 tube. Can anyone suggest where I can find a suitable circuit with component values. I would like band-switching for 80, 40 and 20 meters. I will be driving it with a 25 watt carrier output rice box on AM. I don't like the one in the

Re: [AMRadio] Slip up mast for 80 meter antenna

Ron; I have installed dozens of them for TV antennas through the years. Up to 50 Ft (5 sections). They are just made from electrical thin-wall conduit (EMT). You can make your own cheaper. Paint a wide stripe around the bottom of each inner section about a foot from the end. Pull slowly and when

Re: [AMRadio] power ratings

Thanks, Gary. Ed K6UUZ On Mon, 11 Jul 2005 22:58:26 -0400 Gary Schafer [EMAIL PROTECTED] writes: [EMAIL PROTECTED] wrote: I have a junker HW-100 with a good PA section. How much power could I run as a linear amp using 2X6146 and what rating power supply would I need? Thanks.

[AMRadio] Power ratings

I thought I understood these things, But I have confused me little self. I need some clear thinking here. I have a rice box rated for 100 watts SSB or 25 Watts AM. I belie

Re: [AMRadio] Power ratings

Sorry about this. I must have hit a wrong key and sent the message before I was done. Ed K6UUZ On Mon, 11 Jul 2005 08:42:39 -0700 [EMAIL PROTECTED] writes: I thought I understood these things, But I have confused me little self. I need some clear thinking here. I have a rice box rated for

[AMRadio] power ratings

I thought I understood these things, But I have confused me little self. I need some clear thinking here. I have a rice box rated for 100 watts SSB or 25 Watts AM. I believe the 100 watts is PEP while the 25 watts is RMS (continuous carrier). I want to add a linear amplifier to bring the 25 watts

[AMRadio] power ratings

I want to thank everyone who responded to my question. The consensus of opinion is that the AL-811 runs 100 watts of carrier on AM with 400 watts PEP. This with 3X811 while my DX-100 does the same thing with 2X6146. Doesn't sound right, does it? I have a junker HW-100 with a good PA section. How

Re: [AMRadio] Heath SB Problem!

Hi Bob; I have fixed several with this problem. Use a 1/4 inch shaft (from an old volume control, maybe) about 1/4 inch longer than your shaft. Get 2 each flat 3/8' sheet metal nuts (True Value Hardware, etc) and a 1/4 ID X 3/8 OD rubber grommet. Force the nuts (facing each other) onto the

[AMRadio] FS: Complete AM station...Pick-up only

Gentlemen; If you cannot arrange to pick this equipment up at Simi Valley, CA or do not want the entire lot, there is no need to read further. I am offering it first to the members of the reflectors. If it does no sell here, I will put it on that on-line auction site. If it does not sell there, I

Re: [AMRadio] FS: Complete AM station...Pick-up only

Thanks, Dennis. Ed On Wed, 15 Jun 2005 18:14:00 EDT [EMAIL PROTECTED] writes: Ed, Sorry to hear about your health problems. Have forwarded your message on to a couple of guys who might be interested. 73, Dennis D. W7QHO Glendale, CA