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Budget 300b

Hi there,first to thank you for all you videos and knowledge that you share with us !

I love watching them,learning so much.

I’m planning to build 300b from stuff that i already have laying around,

and have a few questions if you can please help me ?

First those tantalum capacitors,do they need to be tantalum ?

Balance pot,could i get away with matched pair of 51 ohm resistors ?

Also could i get it done with solid state full bridge rectifier for B+(have transformer) and in your opinion how would that influence sound ?

Thank you so much and kind regards from Down Under

3 answers0 replies

3 Comments

sulenta

Thankks for reply

I’ve seen quite a few of those tantalum caps goes out with a bang,so not to keen on them.

For balance pot,i’m not trynig to penny pinch on 3 dollar pot,just would like amp to be “”setting free”

And for transformer,i have few around that i was thinking to use,i’ll see about that

Thanks again

Skunkie

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Replying to

https://www.analog.com/media/en/technical-documentation/data-sheets/1083ffe.pdf Feel free to use a different cap if you'd like.

Skunkie

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Yes they do have to be tantalum according to the data sheet. Yes you can use a matched pair of resistors. You can use a SS rectifier if you nail the voltages, no idea how it will influence the sound.