I'm not as clever as ZM, if he had a far removed idiot cousin, and the cousin had a dumb dog, I would be the woodworm living in the brick!.. 
1+1:1+1, this mean 2 identical windings on the input (primary) and 2 identical windings on the output (secondary), 4 identical windings in total. 1x in = 1x out.
1+1:2+2 = 2 identical primary windings with 2 identical secondary windings, each secondary has a voltage gain of 2 (and a current gain of 0.5 - assuming 0 loss), and obiously 1+1:4+4 = 2 identical primary windings with 2 identical secondary windings with 4x the output voltage on each secondary winding.
1+1:1+1, this mean 2 identical windings on the input (primary) and 2 identical windings on the output (secondary), 4 identical windings in total. 1x in = 1x out.
1+1:2+2 = 2 identical primary windings with 2 identical secondary windings, each secondary has a voltage gain of 2 (and a current gain of 0.5 - assuming 0 loss), and obiously 1+1:4+4 = 2 identical primary windings with 2 identical secondary windings with 4x the output voltage on each secondary winding.
ZM , being double Gemini ..... is ZM together with his far removed idiot cousin together with first idiot's far removed idiot cousin together with second idiot's far removed idiot cousin together with ......
considering possibility that each idiot is possibly Double Gemini ..... go figure
Pocoyo , another question - you want balanced input on SE F4 , or you want balanced input to bridged F4 ?
as I'm understanding - in all cases with some gain from xformer ?
considering possibility that each idiot is possibly Double Gemini ..... go figure
Pocoyo , another question - you want balanced input on SE F4 , or you want balanced input to bridged F4 ?
as I'm understanding - in all cases with some gain from xformer ?
Yes, Gain x2.
1x transformer for each mono F4.
Brown = Ground
Red = Input
Orange = connect to Red
Yellow = Output
Note the 13K + 620pF on the output - see application datasheet https://www.parts-express.com/pedoc...line-input-transformer-application-guides.pdf page 3.
Connect the cap to Brown, not Orange; you may need to play with both values - I seem to remember a post showing the response with different capacitor values for the EDCOR in M2, err I think it was the M2
1x transformer for each mono F4.
Brown = Ground
Red = Input
Orange = connect to Red
Yellow = Output
Note the 13K + 620pF on the output - see application datasheet https://www.parts-express.com/pedoc...line-input-transformer-application-guides.pdf page 3.
Connect the cap to Brown, not Orange; you may need to play with both values - I seem to remember a post showing the response with different capacitor values for the EDCOR in M2, err I think it was the M2
Yes, Gain x2.
1x transformer for each mono F4.
Brown = Ground
Red = Input
Orange = connect to Red
Yellow = Output
Note the 13K + 620pF on the output - see application datasheet https://www.parts-express.com/pedoc...line-input-transformer-application-guides.pdf page 3.
Connect the cap to Brown, not Orange; you may need to play with both values - I seem to remember a post showing the response with different capacitor values for the EDCOR in M2, err I think it was the M2
At last i bought JT 123 splch ot with 1:1:4:4
If i chose 1:4 so can i use for left & right channel ?
I am really considering making something with tubes for the F4. You are saying balanced needed just for the power, right? Nothing should stop you from driving one F4 with a SE Aikido if that power is enough for you.
octal vs. noval - one needs to choose own poison .......
generally - for F4 , everything decent , having gain of 20-22-25V/V is perfect for the job
less means no max power , more means unnecessary signal choking on the pot
I believe Aikido subject is beaten to death around , more than well covered on author's site , so just search
generally - for F4 , everything decent , having gain of 20-22-25V/V is perfect for the job
less means no max power , more means unnecessary signal choking on the pot
I believe Aikido subject is beaten to death around , more than well covered on author's site , so just search
I'm building an F4 in a semi-permanent testbed using an external psu. Should I put a capacitor bank for compensation due to one meter power cables 3.5mm^2?
The PSU is dual mono with 400VA toroids and the rest according to Mr Pass general PSU. Other Ideas or comments are appreciated?
The PSU is dual mono with 400VA toroids and the rest according to Mr Pass general PSU. Other Ideas or comments are appreciated?
Attachments
