Sometime back there was some discussion about eBay page navigation failures. I am one of those who experiences such failures. I have found a work around. When...
An uncommon Heathkit IT-1 variable isolation transformer unit. Varies output AC voltage from 96 to 142 VAC with very high impedance isolation. 100 watts...
I found a collection of Heath part number 41-33. I also found a cross reference on the web that verifies that this part is a DL8739, and suggests that it is a...
I need to buy the allen keys for the knobs and zero set knob for the SB-301. The manual says #4 and #8 allen keys. What is the equivalent in inches or mm??...
This is pretty easy once you realize the numeric reference is to the size screw the wrench fits..... so, you are looking for an Allen wrench for number 4 and...
I am trying to tune up a friends twoer (HW30) and it was working but now it seems to be off buy almost 4 MHZ when i tune it per the procedure i get an output...
That is a GREAT site - what a walk down memory lane for me. It really made me wish I still had that SX-25 I got in 1963 when I first got my Novice. Oh well . ....
Greetings Group, I have the above meter . It need a handle and I need the power source information. What plug and what polarity and what voltage do I need to...
I have both: IO-105, and IO-17 scopes and could not find any reference to that part in either schematic, or parts list, if that helps you. ... From:...
thankyou, MIke, Ed, and all who contributed to making my c3 condensor checker back to working order. My next situation is the classic heathkit xo-1. I want to...
. . Hello Jim... . . Abouy the only place that I can think of that Heath may have used . delay line, would be in the color TVs.. Try checking there... ....
I think Bob is on the right track. My Heath GR-295 color TV manual lists a part numbere 41-1 as a delay line. BTW, if anyone wants it (to rebuild or for...
The article about WLW's "Big-Arse Transmitter" is one of my all time favorites. http://www.ominous-valve.com/wlw.html Street lighting blinked on modulation...
I heard about a mod for the HW12 to be converted into a 3 bands. Anyone know about it? _____ From: heathkit@yahoogroups.com [mailto:heathkit@yahoogroups.com]...
Was the 90k resistor the problem? ... From: "KATIE" <dakinetube@...> To: <heathkit@yahoogroups.com> Sent: Saturday, October 03, 2009 5:43 PM Subject:...
There was a 3-band kit available-I remember reading old ham mags(1960's, I think), and seeing the ads for the kit. I can't tell you more than that, but at ...
hi, re. the c3 cap checker, the 90k is ok. I just followed the calibration procedure and moved the pointer. The problem was mostly the 2.0uf cap. Its working...
I just spent about an hour trying to align my HR-10. Everything seems as I expected except the BFO. When I zero beat the external oscilator with the BFO set to...
Martin wrote ... Hi, Try connecting your signal generator directly to the IF strip, through a series .01uF cap and 1 Meg resistor, and sweep above and below...
The history as i know it is as follows. The VFO mod was not done by me, it was done 4 months ago and was working after it was done. The VFO is an Ameco that is...
Hi All.Had this on Rx's in the past.Assuming the BFO itself is "On Freq'",Sometimes this can be due to the IF strip being "Aligned By Ear",or aligned for...
