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Bob Cordell's Power amplifier book
Bob Cordell's Power amplifier book
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Old 21st July 2019, 01:52 AM   #9511
john curl is offline john curl  United States
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Old 21st July 2019, 02:52 AM   #9512
anatech is offline anatech  Canada
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Bob Cordell's Power amplifier book
So much for J-FETs I guess John.
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Old 21st July 2019, 04:25 AM   #9513
davada is offline davada  Canada
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Isn't that what the doctor from Boys of Brazil said?
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Old 25th July 2019, 01:33 AM   #9514
Fred Soop is offline Fred Soop  United States
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Quote:
Originally Posted by Bob Cordell View Post
Strange, I just checked Amazon (US) and it says it is in stock. Sure doesn't sound like Amazon when they have something in stock.

Cheers,
Bob
Ordered yesterday, 7/24, and Amazon reported only 12 left in stock. Sale priced at $84.84.

Fred
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Old 26th July 2019, 12:48 AM   #9515
helitim is offline helitim  Canada
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My copy arrived today... $110 Canadian, to my door. Much faster shipping than expected. I'm away working for the next week, so I can't start reading until then!
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Old 26th July 2019, 05:44 AM   #9516
Trollet is offline Trollet  Sweden
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Bob Cordell's Power amplifier book
My book arrived last week. First inpression is that it explains a lot of things in an easy way, and explains things that one maybe haven't had a thougt on.

Seems that I have a lot of things to simulate but it has to wait for a while.
Renovating my roof now, before installing solar panels.

Figge
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Old 28th July 2019, 04:47 PM   #9517
WaltJ is offline WaltJ  United States
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Default Let's hear it for the PM329!

Some clarifying comments on the 2d Ed. book Figure 2.15 circuits:

1) On page 42 the Fig. 2.15(b) "Zener Shunt" is what I originally called a "PM329" several years back, having been designed to emulate the LM329 in general regards, but with much lower noise.

2) This circuit, like the LM329, has a dynamic impedance less than an ohm.

3) This circuit, unlike the LM329 has a noise level around 20-25nV/Rt-Hz. This is around 3-4 times lower than the LM329, but the price paid is the higher current.

I shared this with Bob Cordell in August of 2015 (see Figure 3: of this reference).

Walt Jung

Last edited by WaltJ; 28th July 2019 at 04:50 PM. Reason: clarity
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Old 28th July 2019, 05:50 PM   #9518
Bob Cordell is offline Bob Cordell  United States
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Thanks for the added information Walt!

Cheers,
Bob
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Old 29th July 2019, 07:34 PM   #9519
chalky is offline chalky
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Maybe I'm missing something but shouldn't R1 and R2 in Figure 9.19 on Page 214 be 100R to get the currents annotated on the diagram?
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Old 29th July 2019, 07:44 PM   #9520
Joachim Gerhard is online now Joachim Gerhard  Germany
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