I only wish I had waited 3 more years so I wouldn't have wasted so much time trying to get up to 5wpm to barely pass the cw test. I did barely pass it, but...
Hi All, I am looking for a copy of the schematics of the Heathkit daystrom dx-60. I have the schematics and manual for the dx-60b but would like a copy for rhe...
100 watts is enough in most circumstances. Let's say you are running your typical, modest Heathkit HW-101 station. On the other hand 10 watts is a nice...
... Not entirely true, Doc - you are still limited by the class of license you have. For example, a General Class licensee may not send CW in the Extra...
... OK, I will put a more fine point on it for clarity: While CW-only segments have in some cases been reduced shared frequencies for CW and SSB and other...
Bry, I have found the even 5w is sufficient to make regular contacts. This was true here with my K1 and a short G5RV antenna at 20' (BTW QRP is defined as...
Thanks Ken - yeah it's funny but I never quite got over the old definition from the bloved 1960s in the U.K. when QRO was defined as 10 watts DC input or...
A couple of years ago I Installed the Harbach Mods for tha HV Caps and Rectifier boards. I fired it up and it smoked. I packed it up . Now I'm ready to fix it....
Well, the major advantage of CW is simply that one can hear 2 or 3 signals and pick out the one they are communicating with, given that the others are not...
Try OdorXit or OdorExit; google it on the web. It is fantastic at getting odors out. It worked flawlessly at getting the stink of dog stool out of our...
Hi, I'm looking at the schematic for a Harbach RM-220 rectifier board. Can you get at the individual diodes within the D1 and D2 assemblies? (Each assembly has...
Hi Thanks for the reply. Yes the diodes are individual. I am going to replace D3 and D4, They are on order. The others test out. Originally I used the vom part...
Hello fella's My HW-101 restoration project is coming along very nicely. All the circuit boards have been cleaned and rebuilt and I am now applying 3/8" of...
Hi, If only those two meter protect diodes are open, the problem is not the diode board. I'm afraid your problem with excessive HV current may be a bad...
OK yes this is a Harbach cap mod. I took the circut board off the capacitor stack. The caps seem ok on the ohm meter. Hi reistance slowly building up. BUT...
Hi, It is hard to see on the Harbach web page, but you can see the diodes on a recent eBay sale photo of a Harbach SB-220 capacitor bank. The 8 small diodes...
Hi Mike, I'm going to be of marginal help, since I didn't download the DX-60 schematic, and I can't remember where I saw it on the web. Anyway, there...
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ma.locksmith@...
Mar 3, 2007 9:10 pm
I respectfully disagree and would not recommend removing the protection diodes. They are there as sacrificial "lambs" to protect the capacitors. IF a reverse...
Hello, I have a HM 102 that my father was using. It stopped working, there is no needle deflection. Does anyone know what I need to look for in order to get...
A long time ago I came across a IEEE paper that said that reverse biased over-voltage stressed diodes usually fail first as a short. Then, if the current is...
Hi Mike, I can scan and send you the DX-60 schematic if you still need it. 73, gary =========////////========== Gary H. Harmon, Jr. - K5JWK 6003 Archwood San...
This is to say goodbye to all of Tony's friends he has made along the way, his life of 62 years. Donald R. Davis or known to close family and friends as Tony...
This is to say goodbye to all of Tony's friends he has made along the way, his life of 62 years. Donald R. Davis or known to close family and friends as Tony...
This is to say goodbye to all of Tony's friends he has made along the way, his life of 62 years. Donald R. Davis or known to close family and friends as Tony...
This is to say goodbye to all of Tony's friends he has made along the way, his life of 62 years. Donald R. Davis or known to close family and friends as Tony...
This is to say goodbye to all of Tony's friends he has made along the way, his life of 62 years. Donald R. Davis or known to close family and friends as Tony...
Hi, But consider the replacement cost of the SB-220 transformer, due to shorted 5 cent diodes ($275 at Peter Dahl Co.). I don't know of any commercial...
Hi, "The Heathkit Shop" has an excellent write-up on troubleshooting the HM-102: www.theheathkitshop.com/hm-102wattmeter.html 73, Ed Knobloch ... I have a HM...
