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Total 8 documents matching your query.

1. Topband: Heathkit SB-1000 (score: 1): Author: Jim Murray via Topband <topband@contesting.com>; Date: Thu, 17 Dec 2015 06:17:32 +0000 (UTC); Anybody know how to make an SB-1000 tune properly on 160? Ok on other bands but doesn't like 160, dummy load or well tuned Inv.L. Is it a quirk of the amp needing a modification or possibly a bad; /archives//html/Topband/2015-12/msg00196.html (6,910 bytes)
2. Re: Topband: Heathkit SB-1000 (score: 1): Author: Rich Cariello <rlcariello@verizon.net>; Date: Thu, 17 Dec 2015 05:33:55 -0500; Jim, If I remember correctly placing an additional transmitting type cap across the units load cap did the job. Don't remember the value I used. My guess 100 or 200 PF. I used a cap I had in the junk; /archives//html/Topband/2015-12/msg00197.html (7,446 bytes)
3. Re: Topband: Heathkit SB-1000 (score: 1): Author: Rich Cariello <rlcariello@verizon.net>; Date: Thu, 17 Dec 2015 05:54:57 -0500; Jim, To get closer to the needed value of the additional transmitting cap I would try to find out the max value of the load cap that came with the amp. Halve the value and that's what I would install; /archives//html/Topband/2015-12/msg00198.html (8,602 bytes)
4. Re: Topband: Heathkit SB-1000 (score: 1): Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>; Date: Thu, 17 Dec 2015 08:03:00 -0400; If you see no dip in the PA current then check and see if the tuning capacitor padding capacitor is open or disconnected. Check the leaf on the band switch that corresponds to the `160 meter position; /archives//html/Topband/2015-12/msg00200.html (12,136 bytes)
5. Re: Topband: Heathkit SB-1000 (score: 1): Author: Louis Parascondola via Topband <topband@contesting.com>; Date: Thu, 17 Dec 2015 07:25:26 -0500; SOmetimes many amps require additional padding on 160m Add another 200pf to what is already there for 160. It is necessary to put a brass washer around the contact on the wafer that adds in the paddi; /archives//html/Topband/2015-12/msg00201.html (10,447 bytes)
6. Re: Topband: Heathkit SB-1000 (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Thu, 17 Dec 2015 07:30:32 -0500; Anybody know how to make an SB-1000 tune properly on 160? Ok on other bands but doesn't like 160, dummy load or well tuned Inv.L. Is it a quirk of the amp needing a modification or possibly a bad com; /archives//html/Topband/2015-12/msg00202.html (8,766 bytes)
7. Re: Topband: Heathkit SB-1000 (score: 1): Author: Louis Parascondola via Topband <topband@contesting.com>; Date: Thu, 17 Dec 2015 07:36:08 -0500; Good point Tom, beginning with too little drive would require more load C than is available. That and the brass washer should be installed also. The SB1000 is the same as an early AL80A. It hits the; /archives//html/Topband/2015-12/msg00203.html (9,014 bytes)
8. Re: Topband: Heathkit SB-1000 (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Thu, 17 Dec 2015 08:31:00 -0500; Good point Tom, beginning with too little drive would require more load C than is available. That and the brass washer should be installed also. Hi Lou, The anti-corona washer was not in the SB1000 o; /archives//html/Topband/2015-12/msg00204.html (9,259 bytes)

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