You are right Marc... so here is the list.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
Total: 38 nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
Total: 38 nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
Total: 40nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
Total: 8 nos.
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
Total: 40nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
Total: 8 nos.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
Total: 44nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
Total: 8 nos.
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
Total: 44nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
Total: 8 nos.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Total: 46nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
Total: 10 nos.
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Total: 46nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
Total: 10 nos.
Hello Prasi,
I am back from my holidays in USA
Could you add me for two boards please
As I have said already this PCB has not been tested in this version but it is exactly the same than the EL34 version except that the output tubes 8-pin octal socket has been replaced by a 9-pin noval socket !
I will make another visual check and if anyone find somethings strange on the schema or the PCB, please let me know ?
Cheers,
Marc
I have a request. Would you consider modifing the heater arrangement for the 12ax7 so that a Russian 6n2p could also be used? These tubes are very good and very inexpensive, compared to 12ax7, but they require 6.3 V between pin 4 and 5 and pin 9 is grounded. A couple of jumpers are probably required and pin 4 and 5 should not be connected in the PC trace.
You could put the burden on those who want to use the 6n2p to run one heater wire directly to either pin 4 or 5, depending on what you chose to disconnect from the supply.
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
Total: 50nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
Total: 16 nos.
magic figure of 50 is reached for BHEL84, now lets wait for atleast 30 for the BHEL34!
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
Total: 50nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
Total: 16 nos.
magic figure of 50 is reached for BHEL84, now lets wait for atleast 30 for the BHEL34!
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
jj506 2 nos.
Total: 52nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
jj506 2nos.
Total: 18 nos.
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
jj506 2 nos.
Total: 52nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
jj506 2nos.
Total: 18 nos.
Hi Francois,
Following your request I have modified the PCB of the EL84 Baby Huey to include a jumper to give you the choice of 12AX7 or 6N2P input tube
I know the 6N1P (ECC82) and the 6N2P (ECC83) and, depending of the supplier, I agree that there are very good ones, I have already used them with the jumper feature in my line preamplifier as you can see on the picture...
Best regards,
Marc
Following your request I have modified the PCB of the EL84 Baby Huey to include a jumper to give you the choice of 12AX7 or 6N2P input tube
I know the 6N1P (ECC82) and the 6N2P (ECC83) and, depending of the supplier, I agree that there are very good ones, I have already used them with the jumper feature in my line preamplifier as you can see on the picture...
Best regards,
Marc
Attachments
LIST FOR BHEL84
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
jj506 2 nos.
matejsirk 2 nos.
RKH 2 nos.
Total: 56nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
jj506 2nos.
Total: 18 nos.
meanie 4 nos
Bfpca 4 nos
overtheairbroadcast 4 nos
odie1427 2 nos.
xbitwise 2 nos.
nerdorama 2 nos.
SCD 4 nos.
TIC37 4 nos.
bandol83 2 nos.
pvphil 2 nos.
vasillis 6 nos.
Carrier Bag Man 2 nos.
jcastellano 2 nos.
baker8 4 nos
demetrios 2 nos.
Francois G 4 nos.
jj506 2 nos.
matejsirk 2 nos.
RKH 2 nos.
Total: 56nos.
GB3 List for BHEL34
dtaylo3 2 nos.
invaderzim 2nos.
mike567 2nos.
bert61 2nos.
demetrios 2nos.
sunil 2nos.
Francois G 4nos
jj506 2nos.
Total: 18 nos.
Hi Francois,
Following your request I have modified the PCB of the EL84 Baby Huey to include a jumper to give you the choice of 12AX7 or 6N2P input tube
Best regards,
Marc
Hi Marc, wow that was fast! Thank you! I think it will openup experimentation also with other tubes to have this flexibility.
One question. In you pre-amp experience are there any issues with having Pin 9 (screen) of the 6n1p connected to the heater supply in stead of ground? I thought pin 9 was intended to be grounded in 6n1p. Likewise in the 6n2p.
Thanks again.