03-31-2010, 02:34 PM
Thanks Sean,
First I thougth I was "getting" this but now I find myself further confused.... I'm getting pretty angry about now cuz I'v started this reply 3 times and spent about 10 minutes typing each time. Then I saw an error and was going to correct it only to find my entire message went poof ... for the THIRD time!
First I would like to review what I have here on this 1941 model.
On the back of the cabinet is a terminal strip with two screws and a female RCA jack. The two screw rear
terminals have a wire coming to them from the tonearm. Then a pair of seperate wires come from the top
of the chassis and via spadelugs, connect to the two screws providing the power for the BOL lamp.
The back side of the RCA connector had a pair of wires also from the tonearm which are from the photocell
and go via a cable to the transformer primary(not sure of the termination at the transformer since mine is
missing). The the output of that transformer (secondary) went into the back of the chassis via a "Motorola"
type connector (like old car radio antennas used). From here the wires connect to the input of the preamp tube.
Now on this 1942 model (sorry didn't recheck the drawing) is the lamp powered the same way with the two wires
from chassis to the terminal strip?
I don't get from the drawing, where is the tonearm connected to this layout? I thought that length of cable illustrated
(the horz lines) with the 4 pin termination at each end was showing that it connects to the transformer's 4pin connector.
Sorry, I'm lost on the flow and interconnetion here somehow. Also (mine doesn't have it) how was a recording made with
this layout? A Seperate arm maybe had an electromagnetic device in it which vibrated into soft plastic which later hardened for playback? Was the signal going right from the mike into the transformer primary ... and then the secondary here shows going to the preamp.. how can that work? ... sorry I don't get it.
Pardon the denseness on my part... just lots of bits and pieces and I'm not seeing it correctly.
Thanks for all the help.... frustrated and confused
First I thougth I was "getting" this but now I find myself further confused.... I'm getting pretty angry about now cuz I'v started this reply 3 times and spent about 10 minutes typing each time. Then I saw an error and was going to correct it only to find my entire message went poof ... for the THIRD time!
First I would like to review what I have here on this 1941 model.
On the back of the cabinet is a terminal strip with two screws and a female RCA jack. The two screw rear
terminals have a wire coming to them from the tonearm. Then a pair of seperate wires come from the top
of the chassis and via spadelugs, connect to the two screws providing the power for the BOL lamp.
The back side of the RCA connector had a pair of wires also from the tonearm which are from the photocell
and go via a cable to the transformer primary(not sure of the termination at the transformer since mine is
missing). The the output of that transformer (secondary) went into the back of the chassis via a "Motorola"
type connector (like old car radio antennas used). From here the wires connect to the input of the preamp tube.
Now on this 1942 model (sorry didn't recheck the drawing) is the lamp powered the same way with the two wires
from chassis to the terminal strip?
I don't get from the drawing, where is the tonearm connected to this layout? I thought that length of cable illustrated
(the horz lines) with the 4 pin termination at each end was showing that it connects to the transformer's 4pin connector.
Sorry, I'm lost on the flow and interconnetion here somehow. Also (mine doesn't have it) how was a recording made with
this layout? A Seperate arm maybe had an electromagnetic device in it which vibrated into soft plastic which later hardened for playback? Was the signal going right from the mike into the transformer primary ... and then the secondary here shows going to the preamp.. how can that work? ... sorry I don't get it.
Pardon the denseness on my part... just lots of bits and pieces and I'm not seeing it correctly.
Thanks for all the help.... frustrated and confused
