We can provide
power transformer which use for 117V, 220V, 230V, 240V.
YouTube channel > Otomon Lab YouTube Channel
YouTube channel > Otomon Lab YouTube Channel
I will give discount 10% or more for all item in my eBay listing,
contact me for more detail
Western Electric LCR RIAA unit built by Okamoto Lab with WE parts
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This was made for WE310A LCR amplifier that I attached schematic but you can use with any tube. input is 600ohm and output is 600ohm. You need preamp with output 600ohm to use with this unit.
Noticeable worldwide interest in the using of Inductive RIAA networks has always been driven by the desire to obtain the best possible sound quality.
The RIAA emphasis (at the recording) , a process necessary to reduce the amplitude of lower frequency and amplify the higher ones for mechanical reasons (primary to efficiently write audio information on vinyl surface ), was historically obtained by a passive LCR network. Clearly the corresponding RIAA deemphasis can be obtained at the best (i.e. with the maximum accuracy) only by a similar dual network
In a theoretical way, any transfer function can be synthesized by an LCR network (passive solution) or by an active RC network (where this network is placed in the feedback loop of an operational, or similar, amplifier).