- 181. [AMPS] fs-2 pairs Eimac 8875s- (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Mon, 16 Mar 1998 20:37:56 +0000
- To: <amps@contesting.com> (snip) At these prices I'll sell both pairs which I have - both do 800W cw, 1kW pep output in MLA2500. They are the earlier type with solid copper anode fins, later ones had
- /archives//html/Amps/1998-03/msg00326.html (7,657 bytes)
- 182. [AMPS] Step Start for Ameritron AL-80A (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Mon, 16 Mar 1998 21:02:25 +0000
- The problem I was thinking of was when you get a trouble in the transformer or bridge or HV caps; then the mains limiting resistors don't get switched out. I guess you can't mistake the fault indicat
- /archives//html/Amps/1998-03/msg00329.html (9,920 bytes)
- 183. [AMPS] Step Start for Ameritron AL-80A (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Thu, 19 Mar 1998 07:26:48 +0000
- I'm not familiar with commercial equipment. Even allowing for dealer rip-off, that must be one heck of a fuse. with Sorry, we've been at cross purposes. My original point was thinking of where the re
- /archives//html/Amps/1998-03/msg00348.html (9,944 bytes)
- 184. [AMPS] RIW amps (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Thu, 26 Mar 1998 08:52:20 +0000
- I traded for one and had fun too. My simple view of it is that there is high loaded Q (narrow bandwidth) and limited tuning range. Minor variations in construction, valves or almost anything else can
- /archives//html/Amps/1998-03/msg00431.html (9,237 bytes)
- 185. [AMPS] TWE Solid State 1Kw linear (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Thu, 26 Mar 1998 19:51:52 +0000
- I'm sorry to bring gloom but yesterday two suppliers told me that MRF429 has been made obsolete. What voltage does this amp. run on? Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submiss
- /archives//html/Amps/1998-03/msg00432.html (7,649 bytes)
- 186. [AMPS] Re: (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Thu, 12 Feb 1998 07:24:46 +0000
- Richardson Electronics (www.rell.com) have 100 ohm flange mounting resistors and 50 ohm terminations with ratings up to 800W. You could use 6 x 100 ohms in parallel-series. The 250W vesion is about
- /archives//html/Amps/1998-02/msg00076.html (7,745 bytes)
- 187. [AMPS] Re: (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Fri, 13 Feb 1998 07:34:14 +0000
- (snip) I think we are thinking of different sorts of resistor - the ones I mean are 'microwave' stripline types. The 800W 50 ohm termination is specified for 100s MHz and the frequency spec. goes hig
- /archives//html/Amps/1998-02/msg00085.html (8,074 bytes)
- 188. [AMPS] one more mla2500 question (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Tue, 17 Feb 1998 07:28:32 +0000
- I wonder if the plate voltage meter is telling lies. The output looks ok (same as mine does) for the drive and current if the voltage was around 2kV - I assume the current is .7A. I've switched mine
- /archives//html/Amps/1998-02/msg00108.html (8,935 bytes)
- 189. [AMPS] Triode PSUs (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Sat, 21 Feb 1998 07:17:30 +0000
- Some commercial amps, like, MLA2500, apply ht and filament power together to g-g tubes. Is this contrary to manufacturer's recommendations and/or bad practice? If so, what are the potential problems
- /archives//html/Amps/1998-02/msg00121.html (6,846 bytes)
- 190. [AMPS] Glitch resisor (score: 1)
- Author: amps@txrx.demon.co.uk (Steve Thompson)
- Date: Wed, 14 Jan 1998 07:22:58 +0000
- Be careful with screen fuses - if they leave the screen floating after they blow, it can cause more flashovers.... If you can get access to a copy, there's a very good treatise on PSU design and prot
- /archives//html/Amps/1998-01/msg00047.html (7,408 bytes)
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