hifi engine

Manual Library / Sharp Optonica

Sharp Optonica ST-3636H

AM/FM Stereo Tuner

add a review (1 review)

Sharp Optonica ST-3636H


Type: Mono/Stereo Tuner

Tuning Bands: FM, MW

Tuning Scale: Analogue

FM Tuning Range: 87.6 to 108 MHz

MW Tuning Range: 520 to 1620 kHz

Sensitivity: 1.4uV (FM), 400uV (MW)

Signal to Noise Ratio: 65dB (FM)

Distortion: 0.8% (FM), 1.5% (MW)

Selectivity: 72dB (FM)

Frequency response: 30Hz to 15kHz (FM)

Output: 350mV (FM), 200mV (MW)

Semiconductors: 4 x IC, 3 x FET, 28 x transistors, 36 x diodes, 3 x LED

Dimensions: 442 x 144 x 373mm

Weight: 7.5kg

Finish: black, silver


H/HB service manual   English - Ivy Caudieus

If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


 Login or register to post reviews

Reviewed Apr 22nd, 2016 by neilfriday

Since purchased in 1980, this tuner continues to operate daily without any problems. The facility of wide IF bandwidth to receive the highest quality is unique. Also the multiplex receiving mode which is more akin to an a.m. demodulator is useful for analysing transmissions and mismatching of receiving aerials. The quality of audio is superb without any whistles or birdies. There is a small mismatch of the left and right levels or about 1 dB on the fixed as well as the variable front panel control.
Over the years, unlike a valved Philips radio, there has been no drift on the tuning or afc circuitry.

The tuner operates perfectly adjacent to fm transmitters, with a high rf field, and apart from the variable front control needing to be adjusted to remove at certain levels, a faulty sounding demise of one of the channels, it is corrected by using the control at maximum or using the fixed phono outputs.
Upon silent fm transmissions, the tuner is super quiet, thus enabling realistic silence fm transmissions analysis.
Readers are requested to research the fourier analysis of fm transmissions which show that most tuners with 180KHz bandwidth cause distortion of the transmitted audio. The wide bandwidth switch facility in the unit overcomes this problem. Although quite heavy in weight, thoroughly recommended. This review submitted in April 2016.



This website is not affiliated with or sponsored by Sharp Optonica. To purchase ST-3636H spares or accessories, please contact the company via their website or visit an authorised retailer.