Hello!
I started a thread on speaker specs earlier (after which I found You call them driver). It has given me some information but I still need more!
I am searching for a simple single amp solution.
I need to replace 10 amps on a Heyligers organ, The drivers being
AD 12100 midrange at 25(45) Watt,
AD 9710 midrange at 15 Watt,
and AD 1265 M8/W8 midrange/woofer still unknown.
The AD 1265 M8 is mostly used with the AD 9710 in paralel.
So max power is limited to 15 Watt for eight pairs.
And the AD 1265 W8 (with Praestant 8" and Gedeckt 8") and the AD 12100 (with Fagot 16" and Subbas 16") at a max of 45 Watt.
I need to solve some problems:
Now It works with 10 same amps using a pot to adjust the max.
These amps are powered bij 40 VAC single coil (and lots of noise from good old 2N3055), from 4 transformers with 3 - 40 VAC coils and 1 - 15 VAC coil each.
- I can make an imitation centertap power supply by using the transformer in super position (Dulon scheme). But does this do the job? Is the voltage stable enough? Has anybody expirience?
-Or is it better to connect the 40 VAC coils to form the centertap. Is it possible to use two transformers and keep it safe?
-Or is there a better solution? Replacing transformers is not much of an option as the 15 VAC is used for oscilators and the preamps.
-To control the volume I plan to use a series of lineair optocouplers in stead of the usual LDR and lamp. But can they be used in paralel as the mid section has a volume control apart from the total.?
-And most important: If the power problem is solved, which amp would then be the best to use, on 16" Fagot and 2 2/3" Nasard or 1 2/3" Terts
None of these seems to be the simple solution that must be there.
Please tell me if you do have one (Apart from leaving it to someone else and buying totally new 😉)
Thanks, Jan
I started a thread on speaker specs earlier (after which I found You call them driver). It has given me some information but I still need more!
I am searching for a simple single amp solution.
I need to replace 10 amps on a Heyligers organ, The drivers being
AD 12100 midrange at 25(45) Watt,
AD 9710 midrange at 15 Watt,
and AD 1265 M8/W8 midrange/woofer still unknown.
The AD 1265 M8 is mostly used with the AD 9710 in paralel.
So max power is limited to 15 Watt for eight pairs.
And the AD 1265 W8 (with Praestant 8" and Gedeckt 8") and the AD 12100 (with Fagot 16" and Subbas 16") at a max of 45 Watt.
I need to solve some problems:
Now It works with 10 same amps using a pot to adjust the max.
These amps are powered bij 40 VAC single coil (and lots of noise from good old 2N3055), from 4 transformers with 3 - 40 VAC coils and 1 - 15 VAC coil each.
- I can make an imitation centertap power supply by using the transformer in super position (Dulon scheme). But does this do the job? Is the voltage stable enough? Has anybody expirience?
-Or is it better to connect the 40 VAC coils to form the centertap. Is it possible to use two transformers and keep it safe?
-Or is there a better solution? Replacing transformers is not much of an option as the 15 VAC is used for oscilators and the preamps.
-To control the volume I plan to use a series of lineair optocouplers in stead of the usual LDR and lamp. But can they be used in paralel as the mid section has a volume control apart from the total.?
-And most important: If the power problem is solved, which amp would then be the best to use, on 16" Fagot and 2 2/3" Nasard or 1 2/3" Terts
None of these seems to be the simple solution that must be there.
Please tell me if you do have one (Apart from leaving it to someone else and buying totally new 😉)
Thanks, Jan