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Total 12 documents matching your query.

1. [AMPS] 8875 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 4 Sep 1997 08:57:19 +0100; Tom, Obviously parasitics, boiling gold (as opposed to boiling oil) AND gas!! 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative reque; /archives//html/Amps/1997-09/msg00074.html (6,742 bytes)
2. [AMPS] 8875 (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Thu, 4 Sep 1997 08:33:22 +0000; Any failure that can't be explained as one absolute cause is ALWAYS a parasitic. Come to think of it EVERY failure must be from a parasitic, because the Chinese use crappy glass in 3-500's, and when; /archives//html/Amps/1997-09/msg00079.html (7,888 bytes)
3. [Amps] 8875 (score: 1): Author: Juan Pablo Ravinale <janlu5yf@gmail.com>; Date: Tue, 17 Mar 2015 08:18:56 -0300; Dear OM`s: I have an old Dentron, and I need to buy two 8875. Can anybody help me with this? If not possible, a pair of GI7B is a good choice? Thank you in advance. LU5YF Jan ________________________; /archives//html/Amps/2015-03/msg00034.html (6,553 bytes)
4. Re: [Amps] 8875 (score: 1): Author: Glen Zook via Amps <amps@contesting.com>; Date: Wed, 18 Mar 2015 20:03:31 +0000 (UTC); Go with the GI-7bT variant if you can obtain them instead of the regular GI-7b. You also might consider a single GS-31b. That tube has a plate dissipation of 1000-watts instead of 700-watts which a; /archives//html/Amps/2015-03/msg00042.html (7,576 bytes)
5. Re: [Amps] 8875 (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Thu, 19 Mar 2015 20:46:20 -0400; A single 3CX800A7 or the 3CPX version is an easier conversion since none of the extreme metal hacking for Russian tubes is needed; the socket and pin outs are identical. Plus the tube is much cleaner; /archives//html/Amps/2015-03/msg00045.html (8,992 bytes)
6. Re: [Amps] 8875 (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 20 Mar 2015 09:45:30 -0400; Is $250. - $300. each still a typical price for good used? Or has Ham-flation (obsession with amps + tube hoarding) driven the used cost up considerably? David KD4E -- *David* KD4E ARES-EC Bulloch Co; /archives//html/Amps/2015-03/msg00049.html (8,121 bytes)
7. Re: [Amps] 8875 (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Fri, 20 Mar 2015 10:17:27 -0400; That price seems to be holding but you DO have to look around a lot. I only look when I have to buy them. Carl -- Original Message -- From: <qrv@kd4e.com> To: "Carl" <km1h@jeremy.qozzy.com> Cc: "Glen; /archives//html/Amps/2015-03/msg00051.html (9,018 bytes)
8. Re: [Amps] 8875 (score: 1): Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>; Date: Thu, 26 Mar 2015 01:20:49 -0400; Doesn't the 8875 use a transverse air flow? If so, how do you get proper cooling with the 3CX-800 ? The electrical part is simple, but mechanically? 73 Roger (K8RI) On 3/19/2015 8:46 PM, Carl wrote:; /archives//html/Amps/2015-03/msg00066.html (9,932 bytes)
9. Re: [Amps] 8875 (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Fri, 27 Mar 2015 09:04:49 -0400; Ive explained that several times. Since the MLA-2500 is PS limited there is no sense in using two 3CX800's where a single already gives an extra 200W of PD over a pair of 8875's. Mount a muffin fan o; /archives//html/Amps/2015-03/msg00071.html (11,149 bytes)
10. [Amps] 8875 (score: 1): Author: "Doug Renwick" <ve5ra@sasktel.net>; Date: Wed, 2 Dec 2015 17:21:40 -0600; I have two 8875s which are different. One is clearly an Eimac manufacture. The other I can not read the name as it is very faint. The 'other' differs from the Eimac in that it weighs more the twice t; /archives//html/Amps/2015-12/msg00012.html (6,947 bytes)
11. Re: [Amps] 8875 (score: 1): Author: Steve <g8gsq72@gmail.com>; Date: Thu, 3 Dec 2015 18:31:30 +0000; I have a vague memory of seeing two different sorts of 8875, both from Eimac. One with copper anode fins, the other with some form of cast alloy. That could account for a weight difference if it appl; /archives//html/Amps/2015-12/msg00020.html (7,248 bytes)
12. Re: [Amps] 8875 (score: 1): Author: Bill Turner <dezrat@outlook.com>; Date: Thu, 3 Dec 2015 12:08:46 -0800; -- ORIGINAL MESSAGE --(may be snipped) REPLY: There is an old trick from the vacuum tube TV days: Cool the tube down and breathe on it. The moisture in your breath will condense more heavily on the p; /archives//html/Amps/2015-12/msg00021.html (7,130 bytes)

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