Vintage Electronics We Source All The Vintage Electronics You Need

Stereo Tubes Russian

Can you use 12au7 tubes instead of 12ax7 in a Fisher 500c stereo?

I have a fisher 500C stereo from the 60s. I was wondering if I could use 12au7 tubes in it since 12ax7 are hard to get and I had some au7 tubes on hand? The Russian 12ax7's do not last long for me and test all over the scale. I do not trust them

Both will plug into the same sockets and both will work in basically the same way. Depending on the sensitivity of your ears, you may detect a slight distortion, but most people can't tell. You won't damage anything by substituting one for the other. Just a matter of personal aesthetics (whether you find the slight difference to be aurally pleasing).

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

Tube Phono Line Pre amplifier fully complete kit incl enclosure and tubes    US $199.00

Mini Dual Tube Headphone Amp Blue Velvet edition from MrNixie    US $189.00

NOS Military GK 71 250W directly heated Power Pentode for tube amplifier    US $19.50

Mini dual tube headphone amplifier kit fully inclusive electronic kit    US $149.00

1 Tomiko 35K 5K SE Single end output transformer 6AQ5 6P1 6P14 6BQ5 EL84 6BM8    US $40.00

Dynaco VTA ST 120 60 WPC stereo TUBE amplifier KIT    US $869.00

1pc PP 10K 20watt output transformer ELL80 6BM8 6BQ5    US $55.00

1 pc One Tomiko 35K Single Ended output transformer 4 2A3 45 UX 245 300B WE300B    US $65.00

1 Ultra Linear PP 10K 15W output transformer EL34 KT88    US $50.00

NOS Military GU81M GU 81M GU81 GU 81 750W directly heated Power Pentode    US $36.00

1 Tomiko 17K 35K SE Single end output transformer 45 UX 245 UX 350 UX 250 50    US $38.00

QUAD 6L6 NOS tubes matched    US $29.00

1 pc One Tomiko 5K PP Push Pull output transformer EL34 6CA7 6L6 KT88 KT77 6V6    US $70.00

Vintage Peco Victoria FC 61D Portable Tube Reel to Reel Tape Recorder    US $50.00

K42Y 2 capacitor 47 uF NOS paper in oil PIO cap tube amplifiers hifi stereo    US $2.99

Sony SRA 3 Tube Recording Amplifier SRA3    US $250.00

Vintage Russian 6DJ8 Stereo Tubes g2    US $18.99

1 pc Tomiko 35K push pull 35w output transformer VT 25 10Y KT88 6550 6L6 EL34    US $65.00

1 35k SE output transformer 2A3 KT88 845 300B 45 KT66    US $63.00

Pilot Radio 232 Stereo Power Amplifier 6BQ5 Telefunken    US $850.00

Stromberg Carlson ASR 333 SP903C Stereo 6BQ5 Amplifier    US $250.00

Pair Mono Eico Hf 60 Acrosound TO 330 Stereo Serviced Mullard Amplifiers EL34    US $1,648.88

Dynaco VTA ST 70 35 WPC stereo TUBE amplifier KIT    US $679.00

3 Vintage Russian 6BQ5 EL84 Stereo Tubes sybira    US $28.99

Vintage Interelectronics Coronation Tube Amplifier 40w    US $500.00

Vintage CSC Tube Amplifier    US $150.00

1 Tomiko 5K push pull 10w output transformer EL84 6BQ5 6V6 DL95 EL95 6BM8 6GW8    US $38.00

KT88 QUAD VALVE ART TUBES CRYO TREATED STUNNING IMPROVEMENT    US $164.90

Vintage audio repair Fisher 400 500 800 b c service    US $49.00

1 Tomiko 75K 38watt pushpull output transformer 6CA7 KT88 KT66 6550 6V6 6L6 6F6    US $65.00

1 Tomiko 8K push pull 10w output transformer 6AQ5 ELL80 6GH8 DL95 EL95 6BM8 EL84    US $38.00

1 Tomiko 35K SE Single Ended output transformer WE300B RCA UX 250 2A3 45 UX 345    US $68.00

Dynaco VTA M 125 125 watt tube amplifier KIT    US $829.00

1 PP push pull 10K 10Watt output transformer 4 VT 25 10    US $35.00

1 Tomiko output transformer SE 8K 10K ELL80 6GW8 6BM8    US $39.00

6N3P 6N14P hand made tube amplifier    US $600.00

Hollowstate Devices Duet 300B Tube Amplifier    US $5,495.95

STEREO 6L6 Tube Power Amplifier amp    US $375.00

PAIR of 6L6 NOS tubesmatched    US $16.00

2 Russian 6V6 EH Stereo Tubes g5    US $17.99

Bewitch 300B x 2 Stereo Vacuum Tube Hi end Tube Integrated Amplifier 230v U    US $682.00

4 Vintage Russian EL84 6BQ5 Stereo Tubes    US $53.99

IN13 Stereo Plasma VU-meter demo1