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Old 7th December 2011, 08:19 AM   #6971
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I want to use more output transistors, Is the bias adjustment are the same.
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Old 7th December 2011, 08:21 AM   #6972
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Quote:
Originally Posted by PMA View Post
Do you have an oscilloscope?
no,i don't
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Old 7th December 2011, 09:16 AM   #6973
norazmi is offline norazmi  Malaysia
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BD139 and TIP41 have different leg , you should check it before replace, cannot just replace like usual, check it on datasheet before do that
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Old 8th December 2011, 11:29 PM   #6974
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im curious ? what is value and voltage of C1(2u2) is this electrolitic cap or ceramic capacitor
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Old 9th December 2011, 09:17 AM   #6975
AndrewT is offline AndrewT  Scotland
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Neither.
Plastic film with either metalised layer or metal foil.
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Old 9th December 2011, 09:27 AM   #6976
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Quote:
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Neither.
Plastic film with either metalised layer or metal foil.
Check the pcb layout, it does look like an electrolytic.

But it's an input cap so any non-polar should work.
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Old 9th December 2011, 09:30 AM   #6977
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any value of 2.2 & voltage but i have 2.2uf / 50v non polar or better if metalized cap...
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Old 9th December 2011, 09:54 AM   #6978
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DX Amplifier Bill of Materials
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Old 9th December 2011, 12:14 PM   #6979
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gud day the electronics shop here needs the voltage for 2u2F i check partlist material but also 2u2f no voltage rating.... any idea...thanks in advance
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Old 9th December 2011, 05:34 PM   #6980
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Default Any voltage will fit..use the one you find

Voltage in the input is just a couple of volts..do not worry and use the one you have.

regards,

Carlos
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