From lafayette at mailman.qth.net Sun Sep 21 17:52:38 2014 From: lafayette at mailman.qth.net (Ron via Lafayette) Date: Sun, 21 Sep 2014 17:52:38 -0400 Subject: [Lafayette] HA-800B Message-ID: <8D1A3FD7ECE1753-2EC4-1475C@webmail-m159.sysops.aol.com> I was wondering if anyone out there that owns one of these old girls would care to correspond. I have several HA-600s, and a regular HA-800 and now two 800Bs. The most recent one has been through cosmetic restoration and it needs an alignment. It's pretty far off frequency. Once on the bench, I'm going to check the caps with one of my ESR meters, calibrate the 100 KHz marker and do the alignment. Anyone been through the alignment, especially "T1"? This had me confused for a while, since it is: 1. never shown on the layout diagram 2. none of the boards are marked The rest should be pretty easy. Coupla things I wanted to mention: I replaced the line cord with a modern 3 wire job. I wanted to add either a BNC or Coax connector to the chassis. Boy, there is just a lack of space. Lastly, what is up with the 'plate' covering what appears to be a 12 VDC connector in the back of the chassis? thanks and happy Lafayette ownership.... ron N4UE -------------- next part -------------- An HTML attachment was scrubbed... URL: From manualman at juno.com Mon Sep 22 21:26:46 2014 From: manualman at juno.com (manualman at juno.com) Date: Mon, 22 Sep 2014 21:26:46 -0400 Subject: [Lafayette] Fw: HA-800B Message-ID: Answers in your text preceded by "***" Pete, wa2cwa ----- Forwarded Message ----- From: Ron via Lafayette To: lafayette at mailman.qth.net, lafayetteradiocollectorsclub at yahoogroups.com Date: Sun, 21 Sep 2014 17:52:38 -0400 Subject: [Lafayette] HA-800B Message-ID: <8D1A3FD7ECE1753-2EC4-1475C at webmail-m159.sysops.aol.com> I was wondering if anyone out there that owns one of these old girls would care to correspond. I have several HA-600s, and a regular HA-800 and now two 800Bs. The most recent one has been through cosmetic restoration and it needs an alignment. It's pretty far off frequency. Once on the bench, I'm going to check the caps with one of my ESR meters, calibrate the 100 KHz marker and do the alignment. Anyone been through the alignment, especially "T1"? This had me confused for a while, since it is: 1. never shown on the layout diagram 2. none of the boards are marked *** HA-800 Series - That's correct. They never showed where T1 were located nor did they show where TR-1, FET2, FET2, and FET3 were located either. There's also several omissions on the schematic drawing including two wires coming from the remote socket that go no where. They actually connect across the secondary of the 500 ohm audio transformer. The rest should be pretty easy. Coupla things I wanted to mention: I replaced the line cord with a modern 3 wire job. I wanted to add either a BNC or Coax connector to the chassis. Boy, there is just a lack of space. Lastly, what is up with the 'plate' covering what appears to be a 12 VDC connector in the back of the chassis? *** The receiver can run on 12 volts DC or 110 volt AC. However, if you run it on 110 volt AC, DC voltage will appear on the pins of the 12 volt socket. The plate is kept in place over the socket opening to prevent accidental shorting of the pins when operating it with 110 volt AC. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- ______________________________________________________________ Lafayette mailing list Home: http://mailman.qth.net/mailman/listinfo/lafayette Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Lafayette at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html From lafayette at mailman.qth.net Tue Sep 23 15:22:44 2014 From: lafayette at mailman.qth.net (Ron via Lafayette) Date: Tue, 23 Sep 2014 15:22:44 -0400 Subject: [Lafayette] HA-800B final In-Reply-To: References: Message-ID: <8D1A57AE28A7DF3-1598-94F2@webmail-va141.sysops.aol.com> Just wanted to thank Pete for his info on the 800B. I finished it today. After cleaning, a realignment and painting the covers, it's pretty darn nice! Capacitors were OK. Checked a few and all were in spec. Although the alignment instructions were incomplete, (I thought I was missing a page!) it was easy to figger out. As usual, MOST of the alignment points were spot on. However, the Mechanical Filter adjustments were pretty far off. Before, tuning SSB was slightly difficult. Now it's quite easy. I've connected it to a Motorola mobile speaker and it sounds excellent. I've had it on the W1AW/p station for about an hour and it's still loud and clear. I know the following may be hard to believe, but it hears almost exactly the same on weak signals as my babied Icom 761.Of course, this was just one quick test on 14 MHz. Same antenna A/B test with a coax switch. Antenna is a Mosley CL-33 up 95' fed with 5/8" hardline..... Pretty good for $50.... ron N4UE -----Original Message----- From: manualman To: lafayette Cc: bonddaleena Sent: Mon, Sep 22, 2014 9:28 pm Subject: Fw: [Lafayette] HA-800B Answers in your text preceded by "***" Pete, wa2cwa ----- Forwarded Message ----- From: Ron via Lafayette To: lafayette at mailman.qth.net, lafayetteradiocollectorsclub at yahoogroups.com Date: Sun, 21 Sep 2014 17:52:38 -0400 Subject: [Lafayette] HA-800B Message-ID: <8D1A3FD7ECE1753-2EC4-1475C at webmail-m159.sysops.aol.com> I was wondering if anyone out there that owns one of these old girls would care to correspond. I have several HA-600s, and a regular HA-800 and now two 800Bs. The most recent one has been through cosmetic restoration and it needs an alignment. It's pretty far off frequency. Once on the bench, I'm going to check the caps with one of my ESR meters, calibrate the 100 KHz marker and do the alignment. Anyone been through the alignment, especially "T1"? This had me confused for a while, since it is: 1. never shown on the layout diagram 2. none of the boards are marked *** HA-800 Series - That's correct. They never showed where T1 were located nor did they show where TR-1, FET2, FET2, and FET3 were located either. There's also several omissions on the schematic drawing including two wires coming from the remote socket that go no where. They actually connect across the secondary of the 500 ohm audio transformer. The rest should be pretty easy. Coupla things I wanted to mention: I replaced the line cord with a modern 3 wire job. I wanted to add either a BNC or Coax connector to the chassis. Boy, there is just a lack of space. Lastly, what is up with the 'plate' covering what appears to be a 12 VDC connector in the back of the chassis? *** The receiver can run on 12 volts DC or 110 volt AC. However, if you run it on 110 volt AC, DC voltage will appear on the pins of the 12 volt socket. The plate is kept in place over the socket opening to prevent accidental shorting of the pins when operating it with 110 volt AC. ______________________________________________________________ Lafayette mailing list Home: http://mailman.qth.net/mailman/listinfo/lafayette Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Lafayette at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -------------- next part -------------- An HTML attachment was scrubbed... URL: From bcarling at cfl.rr.com Tue Sep 23 15:55:15 2014 From: bcarling at cfl.rr.com (bcarling at cfl.rr.com) Date: Tue, 23 Sep 2014 15:55:15 -0400 Subject: [Lafayette] HA-800B final In-Reply-To: <8D1A57AE28A7DF3-1598-94F2@webmail-va141.sysops.aol.com> References: , <8D1A57AE28A7DF3-1598-94F2@webmail-va141.sysops.aol.com> Message-ID: <5421D023.10008.B63A2@bcarling.cfl.rr.com> Wow - this person didn't want to waste a single milliwatt! On 23 Sep 2014 at 15:22, Ron via Lafayette wrote: > Antenna is a Mosley CL-33 up 95' fed with 5/8" hardline From lafayette at mailman.qth.net Sat Sep 27 12:39:06 2014 From: lafayette at mailman.qth.net (Ron via Lafayette) Date: Sat, 27 Sep 2014 12:39:06 -0400 Subject: [Lafayette] Those pesky (and fragile) Lafayette dials Message-ID: <8D1A888B0480450-1F34-2425E@webmail-va135.sysops.aol.com> I know that everyone who has several of the Lafayette radios like the HE-80, etc, with the slide rule dials, has seen the lettering flake off. No cure for that, I'm afraid. However, here's something I discovered this week........ I just received a HA-52A receiver. I buy these and after fixing them, give them to friends who don't have or can't afford a NOAA radio. This particular specimen was (is) a mess. It appeared some components shorted, letting the magic smoke out of the power transformer. This smoke made it's way to the back of the dial. which had all the numbers, logging scale etc. I cleaned the front with Windex and started cleaning the back with a q-tip around the numbers, it looked worse than before. The Part # is the same material as the numbers and sure enough Windex wiped them away. Then, I tried the use of a Micro fiber towel, dry and gently. Some of the smoke came off and the letters stayed put. Next, I 'fogged' the dial with my breath. Wow, worked perfect. No smoke, clean as the day it left Japan. No onions that day! BTW, my first 'experience' with this lettering came when I absentmindedly wiped the inside of a HA-63 dial. That radio now has a digital dial! ha ha ron N4UE -------------- next part -------------- An HTML attachment was scrubbed... URL: From manualman at juno.com Sat Sep 27 16:49:42 2014 From: manualman at juno.com (manualman at juno.com) Date: Sat, 27 Sep 2014 16:49:42 -0400 Subject: [Lafayette] Those pesky (and fragile) Lafayette dials Message-ID: You should never use Windex on any glass that have dry emulation markings adhered to them. Windex is designed to clean everything off the glass. A damp micro cloth, if anything, should be the only thing to clean the glass with no rubbing, and even with that, one has to be careful. After 40 plus years, the emulation on the glass is very dry, causing it to flake off and with too much moisture applied, it will cause the lettering to run off. Ideality, it one has a receiver with these types of dials, the dial should be removed and several high quality paper copies of the dial should be made. Then, if you clean and wipe away part of the markings or all of them, you can at least make a paper dial and mount it behind the dial pointer. Or you can take the paper copy and have a copy center do a copy to a transparency ( to black, red, yellow,etc. print but not white) and adhere the transparency to the fully cleaned and completely wiped glass. Pete, wa2cwa On Sat, 27 Sep 2014 12:39:06 -0400 Ron via Lafayette writes: I know that everyone who has several of the Lafayette radios like the HE-80, etc, with the slide rule dials, has seen the lettering flake off. No cure for that, I'm afraid. However, here's something I discovered this week........ I just received a HA-52A receiver. I buy these and after fixing them, give them to friends who don't have or can't afford a NOAA radio. This particular specimen was (is) a mess. It appeared some components shorted, letting the magic smoke out of the power transformer. This smoke made it's way to the back of the dial. which had all the numbers, logging scale etc. I cleaned the front with Windex and started cleaning the back with a q-tip around the numbers, it looked worse than before. The Part # is the same material as the numbers and sure enough Windex wiped them away. Then, I tried the use of a Micro fiber towel, dry and gently. Some of the smoke came off and the letters stayed put. Next, I 'fogged' the dial with my breath. Wow, worked perfect. No smoke, clean as the day it left Japan. No onions that day! BTW, my first 'experience' with this lettering came when I absentmindedly wiped the inside of a HA-63 dial. That radio now has a digital dial! ha ha ron N4UE -------------- next part -------------- An HTML attachment was scrubbed... URL: