...The 1968-69 Dagnall (#1998) was paper insulated and wound on a paper former, the 1974 Dagnall (#2668) was Hostaflon insulated and wound on a nylon bobbin...
...cause i bought a 72' Dagnall OT (he told me he took it from a 72'superlead ) from Ned Babb ( member of plexi palace, at least but i think i saw him here as well ) a few years ago, that has the flying leads...
-when did they switch from #1998 to #2668 with the flying leads ?
-As for the SL it's been in Jul/Aug 1969, exactly as they switched from the plexi to the aluminum panels - as for the SB it might have been a bit later.
...I assume, that this OT is wound the way, the 100W OT's are wound, which aren't interleaved, but do have a second parallel 16 ohms secondary (w/o taps for 4 & 8 ohms), which should be attached in parallel to the entire main secondary (0-16 ohms), to reduce stray capacitance and to increase the coupling factor and efficiency...
Larry
...The 68' and the 78' Dagnalls are different animals. One change among others was to wind the transformers on nylon bobbins instead of on a paper former. Paper former OT = C1998 Nylon bobbin OT = C2668...
...I posted the following C2668 spec a while back - hope this helps. I ended up using George's Dagnall Clone in my '78 2203 - sounds fantastic...
-Drake or Dagnall transformfers for Ed? I don't anything about building amps..... What iron of these 2 is the best?
-absolutely dagnall
...I'm selling my 83 2203 and it has the DEC 2668 OT and the DET 4145. I've seen several of these 2203's and they all have these Dagnall trannies...
...All 100W Marshall amps from 1968 onwards had Dagnall trannies in it! The Drake are found only in the 50W models...
Larry
...in late 67, they began using dagnall ot's...
...Drake trannies? Funny, Dagnall has done the 100 watt output trannies since '67 or '68..........are these vintage trannies?...
...I have no valid proof to give you, other than my belief that at least through the early JCM800 years the Drake and Dagnall trannies were all pretty good meat...
Достаточно фактов?
Это я слегка прошелся по метроамповскому форуму. Еще не трогал маршальский, плексипэлэс и дежиарпэйдж.
