*  SRPP RIAA Amplifier D.I.Y

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Real Audiophile no use Push Pull Amplifier
SRPP RIAA Pre-Amplifier


This Pre Amplifier for RIAA was built up early 1994 and restration of
Pre-Amplifier on Sep 2009 starting.this pre was consist with 7 valves,tone control and
RIAA , Pre-amplifier.REC OUT.improve only a parts of RIAA.I like SRPP RIAA sound
with CR Network and 4 valves of SRPP.
T1 determind 6.8K and 0.047uF,56K and 0.0047uF.
T2 is determind with 6.8K, 0.047uF and T3 is calculated by realation T1 and T2.
T1 is 3.18mS ,T2 is 0.318mS and T3 is 0.075mS from RIAA Spec.please see RIAA Site
for more information of RIAA value.
RIAA OrgRIAA INformationplease see.
depend on how to caluculate , different value indicated by designer.

I have very nice sound from these RC network values.almost american old Jazz tested good.
Tested : ECM /Keith Jarrett Stella by Starlight,Milestone Records/Red Alert Red Garland
Miles Davis"Round About MidNight"/CBS more are very natural.
Classic: Just tell you, just played Pablo Casals and Rudolf Serkin recorded on 1953
Beethoven Sonata for Cello & Piano.disc is very old one but remaster recorded on
1984 by CBS. I felt "they are playing a front of my eyes".very good sound and natural.
just few components are used but sound very good.old Jazz LP's played so nice.

It can be made with parts that are sold at local electric parts shops.
It is very simple. I think that it is good to express it as a sound like good and very bright CD.
It is a sound like a new style DAC. The only drawback is easy to pick up external noise. It is easy to pick up the ON / OFF noise of electric products in the household.

This RIAA with EL34 Single Ended Amplifier on 18th Feb 2019

replaced CR Net work value on 23rd Feb 2019

New RIAA 2009

Play LP 2009


RIAA SRPP 1994 Sep

Only RIAA SRPP design on 2 Sep 1994


free Movie Site -----Vexmovies

new circuit SRPP RIAA



RIAA SRPP inside

Pre SRPP MC/MM Amplifier only schematic

Pre Amplifier

RIAA SRPP Pre Amplifier for MC/MM

re wrote on 27th Feb 2019

re wrote schematic diagram RIAA on 27th Feb 2019

Link for RIAA something can help you

The Bona's HomePageRIAA how to?

Minor Audio dot.comRIAA how to calculate?Only Japanese

Back Ground UKhow to calculate SRPP etcfrom UK

SRPP 2C51 RIAA 2C51 SRPP RIAA + tone circuit

Marutu about RIAA only version Japanese traduce by Google
2004 my house

at home 2004 in Sakura Chiba Japanabout 2C51 RIAA

Pre front

front of Pre+RIAA KAZE RIAA

Back side

Back side

right now still using in ItaliyPre KAZE v1



LCR RIAA with bass boost

Circuit diagram of Quad 22 with well-established sound

Quad 22 RIAA

7th Avenue

Since 3rd Sep 2009 in Sakura Chiba Japan lastest update 1st APR 2019

Single Ended Amplifier D.I.Y

How to build up Amplifier Single Ended Amplifier 2003-2019