Anyone know anything about these or the quality of them & what I could use them for in DIY ?
Heres pic
Well they came from unidentified apart from the make EMI tape
recorders....see this thread ...sorry pics are extra large tho...
http://www.groupdiy.com/index.php?topic=26678
Questions ..
would this quality be any good, I think these recorders they came from were semi domestic
Are the trans made by EMI...or who
the round thing in the centre has 1 coil on it is hand written type 728 ? IS this an inductor?
DC resistance with my cheap digital multimeter of 20.3 Ohms ...again any use for DIY ?
The one on left in centre has 944 stamped on it the one below it has a***rans is that altrans ? type 208 .... that one came out of a 1940s wave meter..any any use for DIY?
these two look very similar maybe both made by altrans ?
The top & bottom centre two on there sides top has 92925D on it bottom has 913 on it..they were from the EMI tapes mic inputs I think..again is quality any good ?
Finally the big one its quite a lump has A4 plus another unreadable stamp on the top on the other side on the coil covering is stamped 1428* cant read last digit..it has 600 Ohm output with centre tap that went straight to U pad on top 3X150 Ohm res then to 600 Ohm OP socket theres also 2 terminals marked 0 & 15...could that be 15 ohms output for speaker ?
it measures 3.9 Ohms DC with my meter & 600 Ohms measures 22 Ohms DC. I fed it output from my redd DIY & got decent sound from 600R output..
wondering if it would take HT thru its primary ? for my other BA type pres, how do I find that out without cooking it? if I cant obtain info on it
Maybe its old junk but thanks for looking
Heres pic
Well they came from unidentified apart from the make EMI tape
recorders....see this thread ...sorry pics are extra large tho...
http://www.groupdiy.com/index.php?topic=26678
Questions ..
would this quality be any good, I think these recorders they came from were semi domestic
Are the trans made by EMI...or who
the round thing in the centre has 1 coil on it is hand written type 728 ? IS this an inductor?
DC resistance with my cheap digital multimeter of 20.3 Ohms ...again any use for DIY ?
The one on left in centre has 944 stamped on it the one below it has a***rans is that altrans ? type 208 .... that one came out of a 1940s wave meter..any any use for DIY?
these two look very similar maybe both made by altrans ?
The top & bottom centre two on there sides top has 92925D on it bottom has 913 on it..they were from the EMI tapes mic inputs I think..again is quality any good ?
Finally the big one its quite a lump has A4 plus another unreadable stamp on the top on the other side on the coil covering is stamped 1428* cant read last digit..it has 600 Ohm output with centre tap that went straight to U pad on top 3X150 Ohm res then to 600 Ohm OP socket theres also 2 terminals marked 0 & 15...could that be 15 ohms output for speaker ?
it measures 3.9 Ohms DC with my meter & 600 Ohms measures 22 Ohms DC. I fed it output from my redd DIY & got decent sound from 600R output..
wondering if it would take HT thru its primary ? for my other BA type pres, how do I find that out without cooking it? if I cant obtain info on it
Maybe its old junk but thanks for looking