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Registered Member #1412
Joined: Thu Mar 27 2008, 04:07PM
Location: Taipei Taiwan
Posts: 278
I want to build this but I can't find these transistors.I only can find MJE3055 and MJE3055 in the schematic .What Can I use to substitute other transistors?
I heard that this circuit was popular in Taiwan decades ago.Many hobbyist build it and many company sell kits or products based on it.How about other part of the world?
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
If I were building this circuit, I'd use:
Q1, Q2, Q4, Q9 -> 2N5551 Q3 -> 2N5401
Q5 -> MJE340 Q6 -> MJE350
Q7, Q8 -> Whatever good quality power transistors are available in your country, that you can trust not to be fakes. If you can get the MJE2955/3055 that's fine. I like the MJ15024, MJ15025, MJL3281, MJL1302, etc. These are all overkill for a low powered amp, but that's good, they will be harder to blow up. If you try to buy these parts on Ebay you will probably get poor quality fakes.
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"plastic Tiger Audio Power Amplifier" transistor substitution
