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Old 26th October 2009, 03:27 AM   #1141
radio is offline radio  Macedonia
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Thumbs up Project: Audio amplifier!

Pozdrav svima! (Hello All!)
Treba mi sema sa PCB pouzdanog pojacala koje se napaja na Us=55...60V i za izlazne drajvere koristi tanzistore u TO-3 kucistu (kao: 2N3773 i slicne)!?
Unapred HVALA![/QUOTE]

Hello All!
Thebes me reliable audio amplifiers (scheme and PCB), which will be powered with the Us=55...60V.Izlazne transistors to be in the TO-3 housing (as MJ15003/MJ15004, etc..)
Thank you,
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Old 26th October 2009, 04:52 PM   #1142
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Default Hqqf_503_4_2

I will add my little thing

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Old 26th October 2009, 04:56 PM   #1143
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Default Hqqf_503_4_2

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Old 28th October 2009, 06:31 AM   #1144
radio is offline radio  Macedonia
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Quote:
Originally Posted by radio View Post
Pozdrav svima! (Hello All!)
Treba mi sema sa PCB pouzdanog pojacala koje se napaja na Us=55...60V i za izlazne drajvere koristi tanzistore u TO-3 kucistu (kao: 2N3773 i slicne)!?
Unapred HVALA!
Hello All!
Thebes me reliable audio amplifiers (scheme and PCB), which will be powered with the Us=55...60V.Output transistors to be in the TO-3 housing (as MJ15003/MJ15004, etc..)
Thank you,[/QUOTE]
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Old 1st November 2009, 03:29 PM   #1145
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very impressive amps
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Old 2nd November 2009, 01:31 AM   #1146
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Default analog equalizer

nice analog eq circuit
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Old 4th November 2009, 04:09 PM   #1147
HKC is offline HKC  Hong Kong
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PCB of my latest pre-amp
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Old 4th November 2009, 06:27 PM   #1148
AndrewT is online now AndrewT  Scotland
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Hi Hkc,
the sinks tell us that you have mighty good drive ability.

Tell us the voltage and current capabilities of the pre-amp.
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regards Andrew T.
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Old 4th November 2009, 10:00 PM   #1149
Nrik is offline Nrik  Denmark
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Originally Posted by audioadvantage View Post
nice analog eq circuit
Cello Audio Pallette.
Is it yours? If yes I have a question: wich value are the resistors on the rotary switches fro equalizing?
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STOP - Hammertime!
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Old 5th November 2009, 10:13 AM   #1150
HKC is offline HKC  Hong Kong
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Quote:
Originally Posted by AndrewT View Post
Hi Hkc,
the sinks tell us that you have mighty good drive ability.

Tell us the voltage and current capabilities of the pre-amp.
Hi Andrew

It is the line stage of John Curl's JC-2 pre-amp. The voltage rail is +/- 15v and idle current @ the input JFets is 5.3ma while output bipolar pair is 50ma.
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