Volksturm SM + GEB

[Qiaozhi]

sorry Now I've seen(d 4066) geb=ground e.. balance?

GEB = Ground Exclusion Balance

[cristi71]

sorry Now I've seen(d 4066) geb=ground e.. balance?

[cristi71]

do not understand ... There are several variants, S..SM .. what is GEB? WHERE IS CD 4066 ? thanks

[mehdi]

good job And
very nice
mehdi

[and]

All Files to revised

pin 7 to negative, not to the ground. you have to get full amplitude for control of 4066 (or 4053 - if you use it). the chops' power supply has to have a level of op-amps' supply (equal or more). ie -E and +E in the shematic.

ok

here is the volkstrum + geb in proteus schematic and pcb, the part list, top (pdf), bot(pdf), included, can anyone to revise it is correct or not?, i replaced the kt8xx for the tip3x, and the kt315 for 2n2222 the pins are not the same, and i have a question... can i include a class a amplifier 10w in the tx coil to do more power more depth? and a mic booster in the rx? for 4ohm coil? anyone tried this? im crazy!

ps. my english is weaker
[edit]i forget to put the battery holes , you need to drill the holes for the battery [/edit]

[kt315]

pin 7 to negative, not to the ground. you have to get full amplitude for control of 4066 (or 4053 - if you use it). the chops' power supply has to have a level of op-amps' supply (equal or more). ie -E and +E in the shematic.

[and]

i confuse with the 4013 the pin 7 is ground according to proteus but in the pcb is in the negative voltage, what is the correct configuration? (im making the pcb with proteus )

[mehdi]

I would be careful about what you substitute for the KT816 and KT817. Looks like the BD238 and BD237 have twice the current rating over what I used, so probably ok. KT315 - > 2n2222 is probably less critical.

Hi Don
Thank you for reply.

[dfbowers]

Hi silver
i cannot get those transistor too but i get thistransistors that i thing those are ok but i am not sure yet;
KT816 = BD238
KT817 = BD237
KT315 = 2N2222 ( BC146 is an old type and is extinct in my country)

to dear Don
wath is your opinion; we can use those transistors?
regards
mehdi

I would be careful about what you substitute for the KT816 and KT817. Looks like the BD238 and BD237 have twice the current rating over what I used, so probably ok. KT315 - > 2n2222 is probably less critical.

[mehdi]

Hi dfbowers
yes i connot get the bc146 , 2n4920 , 2n4923.
what transistors can be substituted for BC146 , 2N4923 , 2N4920?
remission for my bad english

Hi silver
i cannot get those transistor too but i get thistransistors that i thing those are ok but i am not sure yet;
KT816 = BD238
KT817 = BD237
KT315 = 2N2222 ( BC146 is an old type and is extinct in my country)

to dear Don
wath is your opinion; we can use those transistors?
regards
mehdi

[dfbowers]

Hi dfbowers
yes i connot get the bc146 , 2n4920 , 2n4923.
what transistors can be substituted for BC146 , 2N4923 , 2N4920?
remission for my bad english

I still cannot help you because I don't know where you live.
Maybe do an internet search from the original components?

http://matthieu.benoit.free.fr/cross/russian_equiv.htm

[dfbowers]

btw i was made a list of materials, i hope not missing anything

Nice!

I'm not sure that my parts list was accurate or not. I might have ordered something for another project with the order.

[silver]

Hi dfbowers
yes i connot get the bc146 , 2n4920 , 2n4923.
what transistors can be substituted for BC146 , 2N4923 , 2N4920?
remission for my bad english

[and]

btw i was made a list of materials, i hope not missing anything

[and]

HCF4520BEY

for what is the HCF4520BEY "Counter Shift Registers Dual Bin Up Counter"? you order this in mouser but it doesn't appear in the schematic. o.o