An interesting page listing 1908 worldwide radio installations which I stumbled upon this morning while searching for Eastern Telegraph Company in Malta: ...
... Electronic Communication Museum in New York State, USA. The AWA is the largest group of radio and electronic communication historians world-wide with...
I found the following useful webpage which contains a link to lodge "temperate but clear messages" in e-mail form to the Charity Commissioners re: Alexandra ...
If I touch the antenna terminals and touch the chassis or cabinet at the same time...WOW! With the rx plugged in, but the AC switch off, there is 88 VAC to...
Hi, I was just wondering if anyone can provide information on which telegraph key (or keys) were probably being used by Eastern Telegraph Company at their...
I don't know but thanks for the safety tip. I'll take a measurement on my NC-101X and see if that voltage is present on the antenna terminals. 73, Scott...
Again, voltages read between chassis ground and ant. terminals. With antenna attached to the rx via grounded transmatch… AC plug inserted A: Rx off - 82 VAC...
VE3DSL suggested it was due to a leaky transformer and to gnd the chassis. It worked. Please define "leaky" in this matter and explain how this would cause the...
I'm looking for some brass based, tipped UV201A tubes with rainbow getter in operational condition. I'm also looking for early Marconi Wireless or American...
This looks like something I discovered long ago. If you look at the schematic on most tube shortwave sets, you will find a pair of capacitors usually around...
There is a new book out called "Ham Radio's Technical Culture" by Kristen Haring, published by MIT Press. (I have no financial interest in this book!) She is...
Well hopefully someone in the crew at AWA can assist. I recently purchased an early CW key that is on a bakelite base. The base is black and the dimensions are...
Tks for the tip, Mike. I looked, but no caps in the primary ckt. The grounding seems to do the trick, but will miss that 88V entertainment. 73, Louis VA3AWA...
Some of the posted reviews by readers about this book on Amazon.com are certainly LESS than flattering...after having seen some of them, I'm not so sure that...
EP Swynar
gswynar@...
Jan 11, 2007 6:33 am
5934
I had a very unpleasant experience with the author prior to the book coming out. She contacted me and asked permission to use something that was created by...
John Dilks K2TQN
oldradio@...
Jan 11, 2007 9:38 am
5935
Hello all, I found a Western Electric tube, # WE-372-A tube in a box of tubes. It is painted black. I can find no information on it from the usual sources....
The black-painted ones are cold-cathode trigger tubes. The 372A is simply a 333A with leads shortened from 11/7/32: to 5". The 333A, in turn, is a 313C with...
Ludwell Sibley
tubelore@...
Jan 12, 2007 10:00 pm
5937
Thanks for the information. It makes some sense of what it was used for out here in rural upstate NY. Party lines were replaced a while ago and we still...
I am looking for a pair of the National Browning Drake coils from the 1920's. Prefer the green silk wound ones, but they can be with the enameled wire, or,...
If you rare planning to attend the CC-AWA Annual Conference in Charlotte this coming March 22-23-24, you need to call the Sheraton and make your reservations...
Hello all, I purchased a Pacent Number 30 Detector stand on ebay recently. I just received it and it looks too good to be from the 20's as the seller stated....
I have the identical detector in the same mint condition. I removed it from a homebuilt crystal set that was made in the 1920's -- no question on the date,...
Hi Lane. Just really hard to believe! This literally looks brand new. What really makes it hard to fathom is the nickle-colored seat that holds the crystal. I...
Eugene -- Crystal Clear, Vol. 1, has a fairly good discussion on the Pacent 30 followed by the Pacent 31. The 30 was introduced in 1922, Maury doesn't say how...
I took Lane's hint and looked up Sievers' book. If you don't have a copy handy, he reproduces ads ("Radio News," June 1922, and "QST," Feb. 1923). This is a...
Ludwell Sibley
tubelore@...
Jan 17, 2007 5:02 am
5946
Hello, Would the UX-199 and N. Electric peanut tube behave well in a HF Hartley oscillator rig? 73, Louis...
Louis......the 199 worked for me in my original TNT rig....I graduated up through the 201A, the 45 and a 210 finally... Memories.. Norm K1AA 73 ... From:...
