da li si izvukao dobar otpornik od 2M, posto imas dva komada u jednom kanalu
izvuci otpornike od 2M i 3M ,to su onda dva plava otpornika pored 0,1uF
i prespoji 0,1uF sa 100R otpornikom
Ako si radio Roberth RIAA (C6=100pF i C7=270+33pF) onda treba ovo da uradis:
The 680k and 110k resistors are in a series in the 750k resistor position.
The 270 and 33pf silver micas are wedged in the 330pf position in parallel.
The 110pf silver mica has been replaced with a 100pf silver mica.
The 2M and 3M3 resistors are removed entirely. They do not require bridging.
The 0.1uf capacitor is replaced by a 100 ohm 1/4W carbon comp. resistor.
The Elna Silmic 2 100uf 16V capacitors are placed in their positions- take note of polarity.
The second 2M resistor that was located above the 2.2K resistor has been replaced with a 680k resistor.
Note on the 2M replacement resistor: This area may effect bass response under 100hz with certain tubes. We are working on a solution to this, looking at more tube data and may have a recommendation of either an optimized value for the tube you are using, or a variable resistor which you can adjust if you do a lot of tube rolling.
The general consensus is:
680k for NOS tube examples
2M for new production chinese examples
3M3 for 6N2P-EV
crvenim tackama su obelezena mesta gde treba da izmeris DC napon, tu stavljas crvenu pipalicu od multimetra
na bilo koju crnu tacku stavljas crnu pipalicu multimetra
evo i pinouta za ecc83
koliko vidim sa slika, grejanje 6,3V je nepovezano sa plocice napajanja na audio pcb
jedino ako ima neka veza sa donje strane plocice
a ovo je verovatno shema:
Sam driver u sebi ima kond od nekih 16uF, ako se dobro secam, kao DC zastitu.
Za ovo merenje sam koristio 2,2uF
Inace ovaj drajver se koristi za opseg iznad 7K
ako nekom bude trebalo ima gotovo AN napajanje ovde:
https://www.ebay.co.uk/itm/Used-Regulator-Power-Supply-Board-For-ANK-Preamp-Phono-Amplifier-No-tube/254170735995?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
ima kod brace Kineza
https://www.aliexpress.com/item/32974012782.html?spm=a2g0o.productlist.0.0.91d6503dCSwO4k&algo_pvid=18c030d9-4c3b-4469-bc51-d7070308c13e&algo_expid=18c030d9-4c3b-4469-bc51-d7070308c13e-25&btsid=5d3b7f39-1168-4cef-907f-599612bb1ca2&ws_ab_test=searchweb0_0,searchweb201602_6,searchweb201603_55