EMI Model 600 EL34 Tube Amplifier - The British Marantz 8?

[@robertthurston6858]

I don't understand design schematics but I understand all the upgrading you did, good video.

[@meshplates]

Never saw this amp.before!

[@kmack2891]

it is amazing

[@kmack2891]

You did make one. Excellent

[@sebokaz]

Thank you for the great video, both detailed and to the point. Great job with the amp also. I am thinking about your voltage doubler point and don't really see it there. It's rather a typical full bridge rectifier with a centre tap conveniently used as an alternative to a pair of balancing resistors. It ensures that potential is split equally between the two capacitors connected in series, just like 1M resistors do at a following stages. So you could easily replace first couple of capacitors after the diode bridge with one having appropriate voltage rating. I believe they've chosen this design to save costs on expensive high-voltage electrolytic caps.

[@NovaluxStereophonic]

I believe you are exactly correct. I was trying to figure out why there was a bridge rectifier and a center tapped transformer. This explains it. In any case this balancing method works much better than the resistor method used elsewhere. I am satisfied with the double cap replacement here.

[@keplermission]

@@NovaluxStereophonic Hi uh ... Novalux, uh I guess you know that the British elite of those years had created the KT77 Kinkless Tetrode to replace the hard-to-get early Dutch EL34 version, the KT77 tube is available today and goes straight into the EL34 socket without modification, at least that was the claim. It would be interesting to see another analysis on a KT77. The output tubes we see here are 'Dimple Top' Soviet origin EL34. The top amplifier for today's Zu Audio DW6 is a Russian G9 Audio Nero 120 pre/power that might make a good review too.

[@kmack2891]

@@NovaluxStereophonic me too. Oh, I guess I am biased. I own it and it does sound awesome :)

[@kmack2891]

@@NovaluxStereophonic me too

[@kmack2891]

@@keplermission maybe I will have Novalux put them in this. It sounds wonderfully incredible as it is