Wurlitzer 200a electric piano replacement transistors

It was made between 1955 and 1960.

https://www.total-piano-care.com/wurlitzer-pianos.html

http://besbrodepianos.co.uk/pianoserialnumber/wurlitzer.htm

I am assuming this is an upright Circa Wurlitzer made in 1930 . A similar model was sold here for £300. https://santamaria-ca.americanlisted.com/music-instruments/upright-gulbransen-piano-circa-1930s-300_26296029.html
Some are going for more like £500. Others are being given away for next to nothing! (£35 or less!)
It depends entirely on the condition of your piano, not just what model it is.

I suggest you pay for what is called a "blue book" valuation of your piano. You can do it all online and it costs around £25. http://www.concertpitchpiano.com/Appraisal.html

contact wurlitzer if you can't find the answer on the internet.

I am sorry but we are not an appraisal service.

Your piano was manufactured between 1976 and 1980. Source: http://www.total-piano-care.com/wurlitzer-pianos.html

Your piano was made between 1960 and 1970
See attachment:

Inside the piano

I don't have a schematic for this unit, however good design would not demand matched transistors.
If a transistor has shorted, USUALLY mating transistors have been damaged. I am not sure how "5" outputs are configured as usually there is symetry and an even number. If the "5" are all on one side and there are mating trnsistors of another number, then likely there is damage to more components and probably back one stage in the drivers or even farther.
Hint: when re-powering this after repair, put a 100 Watt light bulb in series with the power into the unit to act as a limiting fuse that resets without driving heavy current into the unit causing more damage due to failed parts that were not eliminated in the first reapir.

2n4919 readily available from Digikey.com PN 2N4919GOS 64 cents

2N5191 readily available from Digikey.com PN 2N5191GOS 78 cents

2N5191 readily available from Digikey.com PN 2N5194GOS 76 cents

These are NOT obsolete