Re: aa-32 mod...(not REAL long!)....2nd harmonic theory....

Dear BBECK,

Thank you very much; I sincerely appreciate you taking the time to talk to me about this.

I will have to chew on this for awhile. I'll reread your post and think about it carefully, do some googling, and try to respond with either understanding or at least an intelligent question.

Here's an interesting tidbit I picked up in studying how electron tubes are actually designed and fabricated: there are a whole bunch more electrons emmitted from the cathode (whether direct or indirectly heated) than are "needed", than ever get to the anode. Now, from you, I know that the ones who do get to the anode do so so quickly that harmonic distortion cannot be what I thought it was, a result of the space charge of succeeding waves pushing secondarily emmitted electrons back onto the plate. Hmmmph. It seemed like such a nice, understandable theory!! Now I'm back to square one.

So, the suppressor grid in a pentode is there primarily to keep secondarily emmitted electrons from getting to the screen grid, pushing them back onto the plate is the end result but not the raison d'etre. I must admit to feeling a little dumb right now, I had read that before but I completely forgot about that in the excitement of thinking about harmonic distortion and what could be the cause of it.

Best. Thanks. Later.

"It ain't a comeback until it's left the shop" Jimmy Dunne, the first man to drive a VW Beetle faster than 200 mph, and he has the forehead scar to prove it; I will always honor him for taking a chance on me when I wanted to be an engine mechanic.

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Follow Ups Full Thread

Topic - aa-32 mod...(not REAL long!)....2nd harmonic theory.... - radiance 12:31:08 07/01/06 (13)

Re: aa-32 mod - Ron Oehlert 17:03:53 07/03/06 (1)

oops thanks Ron for correction, have saved yr post will do (nt) - radiance 23:37:33 07/03/06 (0)

A little theory for you. - Mark Kelly 19:58:58 07/02/06 (2)

Mark, thank you; you and BBECK have me straightened... - radiance 23:46:06 07/03/06 (1)

Cube root - Mark Kelly 15:21:33 07/04/06 (0)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - drlowmu 22:08:47 07/01/06 (2)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - radiance 00:54:45 07/02/06 (1)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - drlowmu 08:19:13 07/02/06 (0)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - BBeck 18:08:42 07/01/06 (4)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - radiance 00:47:26 07/02/06 (3)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - BBeck 06:32:51 07/02/06 (2)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - radiance 11:42:13 07/02/06 (1)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - BBeck 11:50:33 07/02/06 (0)

Follow Ups

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - radiance 11:42:13 07/02/06 (1)

Re: aa-32 mod...(not REAL long!)....2nd harmonic theory.... - BBeck 11:50:33 07/02/06 (0)

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