Triodino diagram
one more
A+ and B+ are interchangend in some plans !
Did some changes:
DC Heating of the 6SN7 (my horn are quite sensible, round 110dB/W/M) - drop dead quiet now.
And added the meter, which can be switched between the two 2A3.
I have outputtransformers with windings for 8 and 16Ohm for the 16Ohm compressiondrivers in my horns. (jre electronic)
Michael
one more
A+ and B+ are interchangend in some plans !
Did some changes:
DC Heating of the 6SN7 (my horn are quite sensible, round 110dB/W/M) - drop dead quiet now.
And added the meter, which can be switched between the two 2A3.
I have outputtransformers with windings for 8 and 16Ohm for the 16Ohm compressiondrivers in my horns. (jre electronic)
Michael
Thankyou Steve Bench
Hi All
The first project I made I thought I had to use all the best quality components black gates etc this one I used apart from the spragues , components from farnell which I assume are good quality industrial components (no boutique stuff ) and was very pleased with the result . Apart from a little bit of hiss from the tweeters (EV T35b ) which are quite old and only audible with no volume and using AC on the heaters it sounds very clean . Thank you Steve Bench for your site it helped people like me who are electrically inept to have good sound . If you want a tube crossover which to my ears doesn't seem to add to the sound I can recommend this one .
Nigel
Hi All
The first project I made I thought I had to use all the best quality components black gates etc this one I used apart from the spragues , components from farnell which I assume are good quality industrial components (no boutique stuff ) and was very pleased with the result . Apart from a little bit of hiss from the tweeters (EV T35b ) which are quite old and only audible with no volume and using AC on the heaters it sounds very clean . Thank you Steve Bench for your site it helped people like me who are electrically inept to have good sound . If you want a tube crossover which to my ears doesn't seem to add to the sound I can recommend this one .
Nigel
Circlotron mono blocks
Circlotron mono blocks based on 6P45S, ECC99 and 6SL7:
Measurements:
o Bandwidth: 10 Hz - 100 kHz (-3dB)
o Max power output: 60 Watt
o Gain: 16V/V, 24dB
o THD (1dB below max Po): 0.1 %
o Output impedance: 0.32 ohm
o Signal/noise: -85dB (ref max Po)
10 kHz square wave response:
Jan E Veiset
Circlotron mono blocks based on 6P45S, ECC99 and 6SL7:
An externally hosted image should be here but it was not working when we last tested it.
Measurements:
o Bandwidth: 10 Hz - 100 kHz (-3dB)
o Max power output: 60 Watt
o Gain: 16V/V, 24dB
o THD (1dB below max Po): 0.1 %
o Output impedance: 0.32 ohm
o Signal/noise: -85dB (ref max Po)
10 kHz square wave response:
An externally hosted image should be here but it was not working when we last tested it.
Jan E Veiset
a guitar amp i built for a friend - a 10W SE High Octane from http://ax84.com/
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more pics:
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild036.jpg
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild003-1.jpg
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild005.jpg
http://i23.photobucket.com/albums/b353/fishski13/006-2.jpg
- DIY aluminum chassis and boards.
- variable cathode bias pot with RCAs for the test points.
- paralleled octal tube socket to roll a variety of PTs other than the EL84.
- DC supply for filaments and LEDs. i intentionally dimmed the pot LEDs compared to the Standby and Power LEDs so that my friend can decide how bright he wants them.
my friend runs a CNC machine at a cabinet/mill and will be enclosing it in a proper cab made out of birds eye maple and sapele, with an acrylic window to show off the blue tubes. i think we're going to name it "SaFire".
more pics:
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild036.jpg
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild003-1.jpg
http://i23.photobucket.com/albums/b353/fishski13/chassisbuild005.jpg
http://i23.photobucket.com/albums/b353/fishski13/006-2.jpg
- DIY aluminum chassis and boards.
- variable cathode bias pot with RCAs for the test points.
- paralleled octal tube socket to roll a variety of PTs other than the EL84.
- DC supply for filaments and LEDs. i intentionally dimmed the pot LEDs compared to the Standby and Power LEDs so that my friend can decide how bright he wants them.
my friend runs a CNC machine at a cabinet/mill and will be enclosing it in a proper cab made out of birds eye maple and sapele, with an acrylic window to show off the blue tubes. i think we're going to name it "SaFire".
