Seems to me I've seen that comment made about Rick's modifications, although I have no firsthand knowledge. However, I've got about 15 years on my resistor...
DJED1@...
Nov 10, 1999 12:59 am
10168
The 6BE6 is a very popular "pentagrid" tube usually used as a mixer. They are very effective in that role except that they are very noisy for low signal...
Larry Shorthill
r41656@...
Nov 10, 1999 1:11 am
10169
I didn't tune in to the whole thread, but instead of a resistor, I use two 12BA6's with a shorted ballast tube instead of two 6BA6's, this in the BFO and PTO ...
Tom Marcotte
courir26@...
Nov 10, 1999 1:45 am
10170
Nope that title belongs to the 6BA7 or the 6B8, maybe the 1R5 (because of its very low conversion gain). Most tube mixers have rotten dynamic range because of...
Dr. Gerald N. Johnson...
geraldj@...
Nov 10, 1999 1:47 am
10171
There was a very interesting program on PBS this morning about the semiconductor bidness. When I started wathcing they were discussing Bell Labs, and the poor...
Tom Marcotte
courir26@...
Nov 10, 1999 1:56 am
10172
There are two ways of getting a PhD in wafer switches, One is the FT101 series Yaesu, and the other is any of the Swan line of radio's, CX350, CX500, etc,...
Kenneth Crips
w7itc@...
Nov 10, 1999 2:16 am
10173
Well, my S-W has the 3TF7 and I bought a new spare while they were reasonable. The Motorola has been modified so that the socket and all were removed and a...
Ronald Reams
wa4mjf@...
Nov 10, 1999 2:22 am
10174
Here is a trick I have used when I needed to replace a bad contact. Find or buy old surplus wafer switches. Find one that has a contact the same size as the...
Murray Scott
ke8um@...
Nov 10, 1999 3:17 am
10175
Just read the following obit in the Globe and Mail of 9 November, 1999: HAMMOND, Frederick Oliver--Fred VE3HC. Born December 15, 1912. Died November 7, 1999. ...
Walter (Volodya) Sal...
salmaniw@...
Nov 10, 1999 6:15 am
10176
... From: Glen Galati <eldim@...> To: Scott, Barry (Clyde B) <cbscott@...> Cc: r-390@... <r-390@...> Date: Wednesday, November 10,...
Glen Galati
eldim@...
Nov 10, 1999 1:15 pm
10177
List, Thanks to all who replied about the pentode/heptode. I find it very interesting that the single tube can be used as a combinations described. I ...
Scott, Barry (Clyde B)
cbscott@...
Nov 10, 1999 2:34 pm
10178
Was this NOVA on PBS. If so it should be on again Sunday. Terry ... Submissions r-390@......
Terry Burge
terrybu@...
Nov 10, 1999 4:08 pm
10179
RE: the BAMA list It does have the Hammarlund maunual requested. The "C" in a Hammarlund's model number stands for "clock" and was fitted with one. Kenneth A....
Kenneth Crips
w7itc@...
Nov 10, 1999 4:09 pm
10180
RE: fixing wafer contacts Wow what a good idea, just the fix for a hot switched transmitter wafer switch. Here is one of My own, this is for relays: I use the...
Kenneth Crips
w7itc@...
Nov 10, 1999 6:18 pm
10181
I think it was NOVA. They had Bletchley Park (sp?) on this morning. Tom ===== __________________________________________________ Do You Yahoo!? Bid and sell...
Tom Marcotte
courir26@...
Nov 10, 1999 7:10 pm
10182
Boy oh boy, now here is an example of HIGH OCTANE FLAME BAIT!!! Vy73, Mike. KD9KC MARS: AAV6EV kd9kc@... - kd9kc@... Home page:...
Michael P. Olbrisch
kd9kc@...
Nov 11, 1999 4:45 am
10183
Message-ID: <382A45FE.10AF@...> Date: Wed, 10 Nov 1999 22:28:46 -0600 From: "Dr. Gerald N. Johnson, P.E." <geraldj@...> Reply-To: geraldj@... ...
Dr. Gerald N. Johnson...
geraldj@...
Nov 11, 1999 4:41 am
10184
Good Evening R-390x Gang, Have had a rolling discussion regarding CV-591A problem that resolved int getting the "manual" bfo mode to function on lower...
Gene G. Beckwith
jtone@...
Nov 11, 1999 4:00 am
10185
The only problem with ignition points for relay contacts is that they tend to be made of a tungsten based metal for hardness which eliminates connections at...
Dr. Gerald N. Johnson...
geraldj@...
Nov 11, 1999 4:03 am
10186
Hope you'all didn't just eat dinner. 73, Jerry W5KP ... Submissions r-390@......
Jerry G. Kincade
w5kp@...
Nov 11, 1999 4:17 am
10187
... Dr Jerry, That's a problem I've been worrying about...Have recent picked up a Johnson Match box with a bad change over relay...coil is shot..seems the ...
Gene G. Beckwith
jtone@...
Nov 11, 1999 4:25 am
10188
... Give it a frickin' break, guy... If you run into people who have an interest in amateur radio and who don't have the facts straight, then SET THEM...
DAC Crowell
dacc@...
Nov 11, 1999 12:45 pm
10189
Folks, Due to my move, I'm about to part with my pride and joy, an excellent condition '67 EAC with a unique feature: The s/n tag on the front MATCHES the s/n...
Paul Staupe
ptstaupe@...
Nov 11, 1999 12:51 pm
10190
Good Morning Katsuhiko. Just a side note, I use a whole set of tools, mostly stainless steel hemistats, (Long and short) and stainless steel medical jawed ...
Jeff Adams
jadams@...
Nov 11, 1999 2:14 pm
10191
Hi, You might check the Vibroplex web site. I believe they have silver "bug" contacts that might be of use. Regards, George K1IFV in NH ... Submissions...
George S. MacLauchlan
geomac@...
Nov 11, 1999 2:42 pm
10192
Hi All ... A few months back I offered scanned, cleaned up and generally refurbished copies of the 1970 R-390A Navy TM to the list. Quite a lot of you took me...
dma@...
Nov 11, 1999 5:52 pm
10193
Well let me tell you one thing: you don't have to pay anything if you have half a brain! I got mine from a cereal box coupon. Man, was it easy and I was...
antipode
antipode@...
Nov 12, 1999 12:57 am
10194
... Submissions r-390@......
JAMES T BRANNIGAN
JTBRANNIGAN@...
Nov 12, 1999 1:15 am
10195
Hello QSL.NET or QTH.NET users, To avoid some confusion that happened on my last mailing. Let me introduce myself. I'm Al Waller and I provide the Internet...
Alan L. Waller K3TKJ
isp@...
Feb 16, 2000 12:00 am
10196
Hello R-390A enthusiasts, I would like to invite you to currently ongoing EBAY auction for a Collins designed R390A/URR, the heaviest and finest HF radio...
