Transformer TM-48F-038 specs - Crosley CR74 Turntable

Hi,

Please call Aerotech in order to place an order for the product that you're looking for. This is their number: +1-412-963-7470. Thank you.

Hi did you ever got an answer to your question. I think I have the same problem as you had. Thanks
sham

It is dead. Recycle it properly.

Purportedly, this is a generic part once available at Radio Shack. Yes, shockingly, Radio Shack's do still exist. You might see if the part is yet available by contacting them:

https://www.radioshack.com/collections/in-stock-online

It puts out 12v AC. You can get a generic one for about $8 at Radio Shack

I have the same problem, with the same transformer. Did you ever find the specs?

I was thinking of buying the Frigidaire board, connecting to line voltage and measure output voltage.

epson tm-u220pbmodel m188b driver for windows7

http://www.truemfg.com/catalog/servlet/com.apsiva.servlet.HomeServlet
Go to this True web site. It has spec sheets and manuals. Hope this helps you

Abex 172
Admiral 001, 173
Advertura 174
Aiko 016
Akai 002
Alleron 046
Amtron 038
Anam National 003, 038
AOC 006, 005, 004, 007
Audiovox 038
Belcor 004
Bell & Howell 001, 083, 162
Bradford 038
Brokwood 004
Candle 004, 006, 008, 174
Celebrity 002
Citizen 016, 171, 004, 006, 008
038, 105, 174, 177
Colortyme 004, 006
Concerto 004, 006
Contec / Cony 012, 013, 038
Craig 038 v
Crown 038, 171 v
Curtis Mathes 171, 000, 004
006, 015, 105, 162
CXC 038
Daewoo 016, 190, 005
171, 004, 006, 017, 127
Daytron 004, 006, 171
Dimensia 000
Dumont 004, 151
Dynatech 004
Electroband 002
Electrohome 004, 006
002, 003, 019, 022
Emerson 030, 171, 191, 004
038, 046, 006, 012, 023, 024, 025
026, 027, 028, 029 031, 032,
033, 034, 035, 036, 037, 039
041, 042, 043, 044, 047, 123
124, 162, 177, 179
Envision 004, 006
Fisher 048, 049, 051, 162, 180
Fujitsu 046
Funai 038, 046
Futuretec 038
GE 000, 054, 003, 004, 006
022, 052, 055, 087, 164, 165
166, 167, 168, 181
Gibralter 004, 151
Grundy 171, 038, 046
Hallmark 004, 006
Harvard 038
Hitachi 059, 004, 148, 006, 012
013, 060, 061, 135, 136, 137
138, 139, 140, 141, 142, 143
144, 145, 146, 150, 179
IMA 038
Infinity 062
Janeil 174
JBL 062
JCB 002
JC Penny 000, 054, 005, 171
004, 052, 006, 172, 008, 022, 058
063, 064, 072, 087, 105, 181
Jensen 004, 006
JVC 159, 013, 012, 182, 054
060, 065, 066, 067, 123, 157, 158
Kawasho 002, 004, 006
Kenwood 004, 006, 019
Kloss Novabeam 068, 069, 174, 183
KTV 171, 038, 177, 070
LG (Goldstar) 005, 156, 004, 006
172, 012, 019, 056, 057, 058, 155, 171
Loewe 062
Logik 083
Luxman 004, 006
LXI 000, 062, 006, 073
162, 181, 049, 072
Magnavox 062, 004, 006, 130
134, 183, 008, 019, 068, 069
075, 076, 077, 088, 131
132, 133, 219, 235
Majestic 083
Marantz 004, 006, 062
Megatron 006, 059
Memorex 083, 006, 001, 082, 162
MGA 005, 004, 006
079, 082, 019, 022, 051, 080
Midland 054, 151, 171, 172, 181
Minutz 052
Mitsubishi 005, 004, 006
125, 082, 081, 019, 022
051, 079, 080, 135
Montgomery Ward 083
Motorola 003, 173
MTC 005, 004, 105, 006
Multitech 038
NAD 006, 185, 072
NEC 005, 004, 006, 003
Nikko 006, 016
NTC 016
Onwa 038
Optimus 185
Optonica 095, 173
Orion 191, 035
Panasonic 170, 054, 062, 003
Philco 062, 005, 004, 006, 183
008, 012, 019, 003
068, 069, 075, 077
Philips 062, 004, 075, 008, 019
003, 012, 068, 069
076, 086, 087, 088
Pilot 004, 171
Pioneer 004, 006, 090
091, 092, 136, 179, 185
Portland 016, 005, 171, 004, 006
Price Club 105
Prism 054
Proscan 000, 181
Proton 004, 006, 012, 093
Pulsar 151
Pulser 004
Quasar 003, 054, 070
Radio Shack / Realistic 000, 095, 171,
004, 038, 006, 012, 049, 162
RCA 000, 181, 100, 233, 203
212, 098, 005, 003, 004, 006
007, 019, 096, 099, 101, 102, 103
129, 179, 188, 190
Runco 151
Sampo 004, 006, 171, 172
Samsung 171, 004, 005, 105, 006
012, 015, 017, 019, 104, 106, 172
Sansui 191
Sanyo 048, 080, 004
180, 162, 169, 049
Scotch 006
Scott 004, 038, 046
006, 012, 024, 035
Sears 000, 048, 189, 004, 046
006, 013, 019, 049, 051, 066
072, 162, 180, 181
Sharp 173, 095, 171, 004, 006
012, 029, 111, 112, 113, 122
Shogun 004
Signature 001, 083
Simpson 008
Sony 002, 218
Soundesign 004, 038, 046, 006, 008
Squareview 189
SSS 004, 038
Starlite 038
Supre-Macy 174
Supreme 002
Sylvania 062, 004, 006, 088, 076
116, 008, 019, 068, 069
075, 077, 161, 183
Symphonic 038, 189, 033
Tandy 173
Tatung 003
Technics 054
Techwood 004, 006, 054
Teknika 016, 005, 171, 004, 006
008, 012, 013, 038, 046, 076
082, 083, 105, 170
Tera 004, 012, 093
TMK 004, 006
Toshiba 105, 162, 160
161, 049, 072, 118
Totevision 171
Universal 052, 087
Victor 066, 182
Vidtech 004, 005, 006
Viking 174
Wards 000, 062, 095, 005, 004
046, 052, 006, 083, 001, 019
024, 033, 068, 069, 075, 076
087, 088, 119, 120
Yamaha 004, 005, 006, 019
Zenith 051, 083, 004, 152
151, 153, 154, 217

That model doesn't show up at my normal Samsung US parts supplier. Can you post all the numbers found printed on the transformer? One of them should be the Samsung part number. Normally you can look at the voltage rating of the large filter capacitor on the control board and assume that the AC secondary voltage will be about 2V less (in ACrms) than that DC voltage. Now what I'm saying may seem a bit twisted - and it is - but what I mean is this: If the cap is rated at 15VDC, then I'm saying that a secondary voltage of about 13VAC rms should be a good safe level for testing. To confirm this, multiply 13VAC by .635 (assuming it uses a full-wave rectifier) and you get about 8.26VDC. Then allow for about 50% derating by mulitplying the 8.26VDC by 2. This gives you 16.5VDC, which with my generous derating, is pretty close to the caps 15VDC. Then you can remove the transformer and use an isolated Variac(tm) to apply that calculated AC voltage to the secondary connections at the circuit board to see if it powers up. You can measure the DC voltage across the cap as you adjust the Variac(tm), making sure you don't get too close to or exceed the DC rating of the cap. Once you get it working with a main DC voltage of about 50-75% of what's printed on the main electrolytic capacitor, you can start shopping for a sub transformer. It's much easier if it's not a VFD display which would require a separate filament winding, but there's nothing wrong with using a small second transformer for that. You can even mount them both on the chassis and run long leads to the board. As long as the leads are of sufficient gauge, routed and secured well, and protected from nicks, there's nothing worng with that technique. You should make them long enough that if the front panel is later removed for service, the next technician will be able to see the wires before he pulls them out or otherwise damages them. I would also add a varistor on the primary if there's not already one! *grin*