Wurlitzer 200A Electric Piano

Transistor Specifications and Replacement Chart

Wurlitzer

Replacement

------------------  Maximum  ------------------

-----  Gain  -------------

Part Reference

Transistor

Polarity

V_CB

V_CE

V_EB

I_C (A)

P_T (W)

h_FE    @

I_C (A)

Small-Signal Transistors

TR1, TR2, TR15

2N5089

NPN

30

25

3.0

0.05

0.625

450 min.

.001

TR3, TR4

2N5088

NPN

35

30

4.5

0.1

0.625

350 min.

.001

TR7, TR8

2N5087

PNP

50

50

3.0

0.1

0.625

250 min.

.001

TR9, TR10, TR14, TR16*

MPSA06

NPN

80

80

4.0

0.5

0.625

100

.01

TR12

MPSA56

PNP

80

80

4.0

0.5

0.625

100

.01

TR16*

MPSA14

NPN

30

30

10.0

0.5

0.625

20,000

0.1

Output Transistors

TR11

TIP34C

PNP

100

100

5.0

10

80

40 min.

1.0

TR13

TIP33C

NPN

100

100

5.0

10

80

40 min.

1.0

* TR16:  Pianos earlier than serial #102905 use the MPSA06 transistor.
              Starting with serial #102905, the MPSA14 transistor is used.

All replacement transistors are current production parts
with the same lead arrangement as the original Wurlitzer transistors.

LEAD ARRANGEMENT:  (Bottom Views)

V_CB - Maximum collector-to-base voltage with emitter open.
V_CE - Maximum collector-to-emitter voltage with base open.
V_EB - Maximum emitter-to-base reverse voltage with collector open.
I_C - Maximum continuous collector current.
P_T - Maximum power dissapated at 25 degrees Celsius.
h_FE - typical DC current gain for a common emitter configuration at the current shown.

TR1, TR2, TR3, TR4, TR7, TR8, TR9, TR10, TR12, TR14, TR15, TR16

TR11 and TR13