Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+More\s+SB\-220\s+Comments\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+More\s+SB\-220\s+Comments\s*$/: 7 ]

Total 7 documents matching your query.

1. [AMPS] More SB-220 Comments (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 09 Jul 1997 13:56:17 EDT; I unpacked a recently acquired SB-220 today and fired it up prior to rebuilding for 6M. All seemed to go well and power was 1KW out on 10M. After awhile my nose told me something was wrong. Turns out; /archives//html/Amps/1997-07/msg00039.html (10,979 bytes)
2. [AMPS] More SB-220 Comments (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 9 Jul 97 17:39:36 -0700; In a SB-220, during intermittent push-push parasitic oscillations at c.110MHz, lateral mechanical stress is applied to the 3-500Z's hot tungsten filament (1800 degrees K). This stress is due to the; /archives//html/Amps/1997-07/msg00040.html (14,514 bytes)
3. [AMPS] More SB-220 Comments (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Fri, 11 Jul 1997 17:36:23 EDT; Thanks for the info. That is still an 85C cap and is identical to the CDE 380LX seies available for $8.93 from Mouser. A better choice is the 105C 381LX (Mouser # 5985-450V330) and $10.69 in 10 qty.; /archives//html/Amps/1997-07/msg00052.html (18,177 bytes)
4. [AMPS] More SB-220 Comments (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 11 Jul 97 17:40:39 -0700; ...snip... ur welcome, Carl. ...snip... 0.12A is wrong. The current will be limited to .012A. Sorry for the technoblunder. Rich-- R. L. Measures, 805-386-3734, AG6K -- FAQ on WWW: http://www.contesti; /archives//html/Amps/1997-07/msg00056.html (7,647 bytes)
5. [AMPS] More SB-220 Comments (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 11 Jul 97 17:40:42 -0700; snip... Not acording to the Heath parts list. #27ga. wire in a 100mA choke? I don't think so. Collins Radio used a grid to ground resistor in their grounded-grid amplifier. - Which requires less curr; /archives//html/Amps/1997-07/msg00057.html (7,619 bytes)
6. [AMPS] More SB-220 Comments (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Mon, 14 Jul 1997 09:54:44 EDT; The Heath chokes are #30 wire Rich, at least all the ones I have checked here. I just dont like that resistor idea since it adds all those extra 1000pf caps into the equation. If you want a resistor,; /archives//html/Amps/1997-07/msg00079.html (8,655 bytes)
7. [AMPS] More SB-220 Comments (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 14 Jul 97 08:19:45 -0700; As I recall, #30 copper wire has a fusing current rating of around 8A. So check it with a dipmeter. The difference in grid resonant frequency between the original 600pF and 1600PF is quite small. Be; /archives//html/Amps/1997-07/msg00083.html (8,483 bytes)

Current List: 1 - 7
Page: [1]