Output Transformers OP17-OP56 for Sale.

WARNING : Users of these transformers must install earthed
metal enclosures over transformers screw fixed to chassis to
prevent any contact with high voltages.

 

See examples of suitable enclosures at 5050amp  or 8585 amp

See example of potted transformer with C-cores

For Single Ended use :-


OP17 SE,  3k0 : 4 ohms,
20Watts, 1.8Kg, C-cores,  2pcs.

OP18 SE,  408 ohms : 6 ohms,
30Watts++ , 6Kg, C-cores,  potted, 2pcs.

OP24 SE,  1k2 : 1 ohm or 4 ohms, 30W,  4Kg, C-cores, 2pcs.

OP25 SE,  2k9 : 4 ohms or 16 ohms, 30W, 4Kg, C-cores, 2pcs.

OP25A SE,  800 ohms : 8 ohms, 25W, 4Kg, C-cores, 1pc.

OP26 SE,  1k2 : 10ohms or 24 ohms 30W, 4Kg, C-cores, 2pcs.

OP27 SE,  1k2 : 8 ohms, 25W, 4Kg, Ccores, 2pcs.

OP28 SE,  5k0 : 4 ohms, 25W, 4Kg, C-cores, 2pcs.

OP29 SE,  5k0 : 8 ohms, 25W, 4kg, C-cores, 2pcs.

OP30 SE,  4k7 : 5 ohms, 25W, 4kg, C-cores, 2pcs.

OP31 SE,  700 ohms : 8 ohms, 25W, 4Kg, C-cores, 2pcs.

OP42 SE,  4k5 : 8 ohms, 20W, 3.5Kg, C-cores, 2pcs.

OP38 SE,  2k2: 0.8, 2.9, 6.5 ohms, 28W, 5.5Kg, C-cores, 2pcs.  

OP49 SE,  1k7 : 8 ohms, 18W, 1.7Kg, C-cores, 2pcs.

OP51 SE,  1k6 : 4 ohms, 25W, 4Kg, 1pc.

OP54 SE,  4k7 : 4, 8, 16 ohms, 30W, 5kG, Chinese made, E&I lams,
NO air gap, for parafeed, 4 pcs.

OP57 SE,  2k6 : 2, 9, 16 ohms, 25W, 4Kg, Chinese made,
E&I laminations, 1pc.

OP58 SE,  8k1 : 4, 8, 16 ohms, 25W, 5Kg, Chinese made,
E&I laminations, 2pcs.

For Push Pull use :-

OP19 PP,  6k7 : 4 ohms or 16 ohms, 100W, 6Kg, E&I laminations, 2pcs.

OP20 PP,  6k7 : 4 ohms or 16 ohms, 50W, 5Kg, E&I laminations, 2pcs.

OP21 PP,  5k0 : 2, 4, 8 ohms, 20W, 1.5Kg, E&I laminations, 2pcs.

OP22 PP, SOLD, See pictures above.

OP23 PP,  8k7 : 5 ohms, 50W, 4Kg, C-cores, 2pcs.

OP32 PP,  1k8 : 8 ohms, 20W, 3Kg, E&I laminations, 2pcs.

OP33 PP,  6k7 : 4 ohms or 16 ohms, 100W, 7Kg, E&I laminations, 2pcs.

OP34 PP, 4k0 : 4 ohms or 16 ohms, 50W, 4Kg, C-cores, 2 pcs.

OP35 PP, 5k0 : 8 ohms, 20W, 2Kg, C-cores, 2pcs.

OP37 PP, 3k5 : 8, 32 ohms, 100W, 5Kg, C-cores, 2pcs.

OP39 PP,  1k9 : 8 ohms, 20W, 2.5kg, C-cores, 2pcs.

OP40 PP,  10k : 8 ohms, 20W, 2.5Kg, C-cores, 2pcs.

OP41 PP,  2k0 : 8, 32 ohms, 50W, 5Kg, C-cores, 2pcs.

OP43 PP,  5k5 : 8 ohms, 30W, 2.5Kg, C-cores, 2 pcs.

OP44 PP,  3k0 : 8 ohms, 30W, 1.5Kg, C-cores, 2pcs.

OP45 PP, INTERSTAGE TRANSFORMER, 10k0 : 50k0, 0.5Kg, 2pcs.

OP46 PP,  3k0 : 8 ohms, 20W, 1.5Kg, C-cores, 2pcs.

OP47 PP,  2k4 : 8 ohms, 25W, UL taps, 1.5Kg, TOROIDAL;
could be power trans for 240V : 13.8V, 2pcs.

OP48 PP,  2k8 : 2, 4, 18 ohms, 30W, 3Kg, C-cores, 1pc.

OP50 PP, 1k6 : 4, 16 ohms, 50W, 4Kg, C-cores, 1pc.

OP52 PP, EXPERIMENTAL opt, unknown Z ratio, 2Kg, C-cores, 1pc.

OP53 PP,  211 ohms : 8 ohms, 25W, 4kg, C-cores, 1pc.

OP55 PP,  2k4 : 4, 8, 16 ohms, 44% UL, 50W, 5Kg, Chinese made,
E&I laminations, 3pcs.

OP56 PP, 5k0 : 4, 8, 16 ohms, 44% UL, 50W, 4Kg, Chinese made,
E&I laminations, 2pcs.


30Watt OPT with C-cores.
Potted in octagonal steel enclosure with polyester casting resin.
The pot was well painted before bolting to a chassis for a stereo amp with
2 x EL34.

OPT18-potted-5-jan09.jpg

OPT18-potted-4-jan09.jpg

OPT18-potted-2-jan09.jpg

To for sale OP1 to OP16

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