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References: [ +from:amps@txrx.demon.co.uk: 190 ]

Total 190 documents matching your query.

121. [AMPS] MLA2500 meter etc. (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 9 Nov 1998 21:32:39 +0000; Sorry, I lost some stored messages here. Someone was looking for spares - I might be able to help. Contact me direct. Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@cont; /archives//html/Amps/1998-11/msg00140.html (6,542 bytes)
122. [AMPS] Screen regulator circuit needed (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 16 Nov 1998 07:40:03 +0000; snip Only if they have the same, or fairly similar gate threshold voltages - not a problem with same types having same date codes but beware of mixing date codes or type numbers without measuring fir; /archives//html/Amps/1998-11/msg00216.html (9,336 bytes)
123. [AMPS] Screen regulator circuit needed (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 16 Nov 1998 21:40:50 +0000; Agreed. Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: ht; /archives//html/Amps/1998-11/msg00231.html (9,990 bytes)
124. [AMPS] Screen regulator circuit needed (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 16 Nov 1998 21:39:22 +0000; If the applied voltage exceeds the device breakdown voltage, it isn't necessarily terminal if the current is limited. I guess that low frequency power bipolars are probably dc tested in a similar fas; /archives//html/Amps/1998-11/msg00232.html (11,480 bytes)
125. [AMPS] screen regulators (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 16 Nov 1998 21:46:29 +0000; Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://ww; /archives//html/Amps/1998-11/msg00233.html (7,266 bytes)
126. [AMPS] Screen regulator circuit needed (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Tue, 17 Nov 1998 21:38:23 +0000; Without question - I'm not necessarily advocating it, although I will get round to trying it one day... Or add a trip that detects the screen voltage wandering high (or zero current in the regulated; /archives//html/Amps/1998-11/msg00249.html (10,544 bytes)
127. [AMPS] 3rd order IMD driver/final (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Thu, 1 Oct 1998 08:20:29 +0100; As G8WRB mentioned earlier, the final result depends on the phase - the IMD can cancel as well as add, so your rule of thumb might well be 'typical' as opposed to my 'worst case'. Things can also var; /archives//html/Amps/1998-10/msg00003.html (7,926 bytes)
128. [AMPS] Beryllium in 2C39's and 4CX250fg's? (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Sun, 4 Oct 1998 12:01:40 +0100; My research turned up exactly the same. Cases of Berylliosis turn up in people who have worked for a long time in an atmosphere of fine dust. Incineration is a problem - Beryllium metal vapour can be; /archives//html/Amps/1998-10/msg00014.html (9,162 bytes)
129. [AMPS] Info on GI7TB (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Fri, 9 Oct 1998 21:44:53 +0100; Can anyone help with data on this triode please? I guess it comes from the same manufacturer as GS35/GS7, but it's smaller than those. It is physically the same as GS9. Thanks, Steve -- FAQ on WWW: h; /archives//html/Amps/1998-10/msg00079.html (6,558 bytes)
130. [AMPS] Re: GI7TB (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Sat, 10 Oct 1998 08:49:40 +0100; It certainly looks like the right beast. Thanks for the pointer - that's a really useful site. Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrati; /archives//html/Amps/1998-10/msg00101.html (7,281 bytes)
131. [AMPS] 8877 sockets (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Sun, 18 Oct 1998 17:16:22 +0100; Can anyone tell me if the SK2210 'own brand' socket from RF Parts is ok for VHF use? The Johnson/Eimac part is ridiculously expensive over here but it's hard to tell much about the RF Parts item fron; /archives//html/Amps/1998-10/msg00253.html (6,990 bytes)
132. [AMPS] 8877 sockets (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 19 Oct 1998 07:59:32 +0100; I didn't realise the MIL spec side - that does explain a lot. I've used the old ceramic bases in the past, but this is for a commercial job so unfortunately, recycled parts aren't acceptable. 73, Ste; /archives//html/Amps/1998-10/msg00280.html (8,261 bytes)
133. [AMPS] FS: Interesting Amplifier (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 19 Oct 1998 08:26:32 +0100; Oh, what fun to be had! One place I worked a while ago did a similar thing with a 4CX1500. It was great except that the fluid circulating through the anode made a great Van de Graaf generator and eve; /archives//html/Amps/1998-10/msg00283.html (7,909 bytes)
134. [AMPS] Connectors (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Tue, 20 Oct 1998 21:48:13 +0100; As other have already commented, C types are very good (much more contact area on the centre pin) but not widespread. At V/UHF N types seem more reliable in low noise systems - it's normally ascribed; /archives//html/Amps/1998-10/msg00326.html (8,622 bytes)
135. [AMPS] connectors (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Wed, 21 Oct 1998 07:58:39 +0100; Spot on. 7/16 refers (I think) to 7mm inner, 16mm outer diameters. Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@co; /archives//html/Amps/1998-10/msg00329.html (8,340 bytes)
136. [AMPS] Re: N connectors (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Thu, 22 Oct 1998 08:27:34 +0100; snip Not all brands cope with both. The most common one in UK is Greenpar (now part of M/A Com) which is a very good connector but which won't take double screen without reaming out the clamping nut.; /archives//html/Amps/1998-10/msg00362.html (7,971 bytes)
137. [AMPS] High IMD Drivers (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Wed, 2 Sep 1998 07:39:37 +0100; Joining late here... Notwithstanding comments about which sorts and which levels of IMD 'really' matter, I reckon the only realistic way of getting super clean signals in amateur circumstances is to; /archives//html/Amps/1998-09/msg00023.html (9,790 bytes)
138. [AMPS] tuned choke input (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Wed, 2 Sep 1998 18:58:13 +0100; How about Spice, or freeware PSpice? Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-a; /archives//html/Amps/1998-09/msg00032.html (8,149 bytes)
139. [AMPS] Augmenting SB-220 power supply (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Mon, 14 Sep 1998 07:23:59 +0100; It's safer to use a separate bridge on each transformer and combine the outputs into the capacitor bank - avoids the risk of reverse current flow if one transformer has slightly lower output voltage.; /archives//html/Amps/1998-09/msg00181.html (8,704 bytes)
140. [AMPS] 3rd order IMD driver/final (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Wed, 30 Sep 1998 18:08:50 +0100; If the drive is 10dB cleaner than the output stage, the worst case effect is to make the output about 3dB worse than the output stage. If the driver and output have the same IMD levels, the worst cas; /archives//html/Amps/1998-09/msg00337.html (8,071 bytes)

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