PCL86 push pull full differetial Amplifier D.I.Y (Mr Perque Amplifier)
This is new PCL86 UL connection push pull amplifier. probably power will be get
around from 6 to 8 W rms each cnannel.speaker impedance are 2 type 4 and 6 ohm.
in generally PCL86 push pull get around 8 W rms with penthode conection.
I used 15W 8 K P-P Audio push pull transformer by Touei Transformer Tokyo Japan.
nude charactor is 10Hz to 60Khz flat model number is OPT-15PR 8K
has 50% UL tap,secondary are 4-6-8-16 Ohms.this time with one of torgue Sw to change
4 and 6 ohm.recent many speaker system are 6 ohm and some high end audio speaker
use 4 ohms.primary current is max 120mA each wind.1.1Kg weight.also has 50% of UL tap.
they has 2 type of transformer right now, one of band type and black case type.
only available in Japan.very smart transformer.
one thing please try to hook up small Vita Q capacitor with coupling capacitor.
for to get more natural sound .finally I did replaced 3 times output transformer.
from small 10W one to 15W one.now I got around 8 W rms max.very clear sound like direct
heating single ended amplifier like a 2A3 SE.-3 dB freqency is 90Khz.
what effect do they have ? sound has very clear and very wide range -3dB band width.
[10Hz to 90 Khz -3dB]Push Pull but just low power than general Push Pull Amplifier.
some one said just like DHT Amplifier .but indirect tubes push pull amplifier.
why many amplifier maker does not made up these amplifier ? only one thing does not
get real push pull power.(but sound is great than general push Pull Amplifier.)
good separation, S/N is more than 80dB at 1Khz, very good frequency response.
easy to modificate your push pull amplifier.please do it's.
Note: please use LM317P ,P Type.more combiniense.(P means Plastic module)
finaly I got 7 W rms both mode and Max power is 8 W rms.DF is 3.3 at 1Khz 8ohm
but if replaced voltage of tap of transformer from 230V to 200V and adjuted plate
current with resistance of LM317P from 54mA to 62mA. power are down from 7.5 W to
6 W rms max. you will be get like a 2A3 SE sound.sounds like more warmer than before.