thanks andrew
this what i thought also more or less ....
the only think is that i have really high expectations from these transistors ..... its the real japanese product ( it has been in stock in the particular company together with many others since the 80's)
since i had the ability to construct many amps with just a pair of transitors and 35+35 rails i can tell you this :
from all i ver made some of them cheap versions with cheap transistors some of them with very expensive ..... but between the same others parts and same pcb ...the best i ve heard was the 2SA1302-3281 ORIGINAL TOSHIBAS ....
this what i thought also more or less ....
the only think is that i have really high expectations from these transistors ..... its the real japanese product ( it has been in stock in the particular company together with many others since the 80's)
since i had the ability to construct many amps with just a pair of transitors and 35+35 rails i can tell you this :
from all i ver made some of them cheap versions with cheap transistors some of them with very expensive ..... but between the same others parts and same pcb ...the best i ve heard was the 2SA1302-3281 ORIGINAL TOSHIBAS ....
Thanks !!!!
TRIPLE YES !!!!! I AM INTERESTED !!!!!
SCHEMATICS SCHEMATICS PLEASE !!!!
i lay my hands in some original stock of various transistors but they cannot be paired ..... meaning the brother of 3284 in the same quality , brand , and make ....simply can no longer be located ...
i even have mjw21194 but the 193 pair of the same make etch etch canot be located .....
so since i buy these transitors for nothing ....lets example this ....mjw 21194 will cost between 4-5 euros each in athens and the quality of it is really questionable
so if i can have the original transistor in the best of quality for 0.80 euro then i need to built quasi amps !!!!!
regards sakis ( thanks greg !!!! )
greg .... if there is any of the transistors that you would like to have please let me know .... i will be more than happy to send you )
usable transistors are these ( i got plenty more but not for outs )
2SC2578 NPN AF SWTC PWR 140V 7A 70MHz 10
2SC2921 NPN AF SWTC PWR 160V 15A 150W 25
2SC3182 NPN AF SWTC PWR 140V 10A 100W 419
2SD1049 NPN SWTC PWR 120V 25A 80W 10
2SD675 NPN AF SWTC PWR 160V 12A 100W 10
2SD752 NPN AF SWTC PWR 160V 15A 150W 11
BD245C NPN 100V 10A SOT-93 185
BDW83C NPN DARL 100V 10A SOT-93 565
BDW93C NPN DARL 100V 5A TO-220 50
MJ11015 NPN DARL 120V 20A TO-3 353
MJE340 NPN 300V .5A SOT-32 390
MJW21194 NPN POWER TRNS.250V 16A 200W 25
TRIPLE YES !!!!! I AM INTERESTED !!!!!
SCHEMATICS SCHEMATICS PLEASE !!!!
i lay my hands in some original stock of various transistors but they cannot be paired ..... meaning the brother of 3284 in the same quality , brand , and make ....simply can no longer be located ...
i even have mjw21194 but the 193 pair of the same make etch etch canot be located .....
so since i buy these transitors for nothing ....lets example this ....mjw 21194 will cost between 4-5 euros each in athens and the quality of it is really questionable
so if i can have the original transistor in the best of quality for 0.80 euro then i need to built quasi amps !!!!!
regards sakis ( thanks greg !!!! )
greg .... if there is any of the transistors that you would like to have please let me know .... i will be more than happy to send you )
usable transistors are these ( i got plenty more but not for outs )
2SC2578 NPN AF SWTC PWR 140V 7A 70MHz 10
2SC2921 NPN AF SWTC PWR 160V 15A 150W 25
2SC3182 NPN AF SWTC PWR 140V 10A 100W 419
2SD1049 NPN SWTC PWR 120V 25A 80W 10
2SD675 NPN AF SWTC PWR 160V 12A 100W 10
2SD752 NPN AF SWTC PWR 160V 15A 150W 11
BD245C NPN 100V 10A SOT-93 185
BDW83C NPN DARL 100V 10A SOT-93 565
BDW93C NPN DARL 100V 5A TO-220 50
MJ11015 NPN DARL 120V 20A TO-3 353
MJE340 NPN 300V .5A SOT-32 390
MJW21194 NPN POWER TRNS.250V 16A 200W 25
the target
is too built amps that will be with average calculations .....IE no extreme designs , no extreme power levels ,and no extreme protection ....
56+56 rails, 3-4 pairs per board and the use will be light PA applications ....
simple to make ....end expecting from it 150 W give or take but needs to be kinda stable since is to be used in PA
regards
is too built amps that will be with average calculations .....IE no extreme designs , no extreme power levels ,and no extreme protection ....
56+56 rails, 3-4 pairs per board and the use will be light PA applications ....
simple to make ....end expecting from it 150 W give or take but needs to be kinda stable since is to be used in PA
regards
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