This is the Kazan "Kvaker". It was the first Soviet-era guitar pedal that I acquired. It uses a unique circuit which does not use an inductor. It has a Timbre control and a Level control. It's a fun one with a unique sound. It uses germanium PNP transistors. These were manufactured in the late-1970s.

To learn more about it and for access to schematic & instruction manual, CLICK HERE .

This the Kazan "Vibrato", which is a tremolo. It has a depth control that is controlled by the treadle. There is also a Speed and Level control. The circuit utilizes a mixture of germanium and silicon transistors. I like this one a lot, it's pretty cool. I don't use tremolo much but I like the concept this pedal is based on. These were manufactured in the late-1970s.

To learn more about it and for access to schematic & instruction manual, CLICK HERE .

Here is the Kazan "Booster". It is not a booster, but rather a germanium transistor based fuzz pedal that has a decent range of sounds. These were manufactured in the late-1970s. There was a three transistor version and a four transistor version. I believe that the three transistor version was in the more commonly seen silver enclosure and the four transistor version was a silver-blue enclosure (pictured). All that the "treadle" does is switch it on/off.

For the three transistor version schematic, CLICK HERE .
For the four transistor version schematic, CLICK HERE .

This the "Anita" fuzz-wah pedal which has a Level (fuzz) and Volume control. This circuit uses an inductor. To see the schematic CLICK HERE .

This and I believe the whole product line offered by "Riga" were manufactured in the very late 70s/early 80s.

This is the "Anta" fuzz. It's a straight ahead silicon transistor based fuzz pedal with a Level (fuzz) and Volume control. To see the schematic CLICK HERE .

This is the "Astra" wah-autowah-vibrato which has a Frequency and Level control. It is a silicon transistor circuit which uses an inductor. To see the schematic CLICK HERE .

This is the "Inga" fuzz-wah, which utilizes an inductor and has a Level (fuzz), Volume and Timbre (tone) control. To see the schematic CLICK HERE .

This is the "Inta" wah pedal, which is just a straight wah pedal with an inductor. To see the schematic CLICK HERE .

Here is the "Vita" fuzz pedal. It has a Level (fuzz), Volume and Timbre (tone) control. I'm not sure what the treadle controls, I assume it's for the fuzz level but have not been able to verify that. To see the schematic CLICK HERE .

Here is the "Viola" compressor-sustainer which uses a special IC chip. It has a Volume and Level control. All that the "treadle" does is turn the effect on/off.

To learn more about it and for access to schematic & instruction manual, CLICK HERE .

This is the Venta-Elekronika "PE-11 Flanger". It is powered by a pair of 4.5V "planet batteries", which are essentially three AA batteries in one package. It sounds pretty good... seems to be on par with the ADA Flanger. It appears these were manufactured in the mid to late-80s. To see the schematic CLICK HERE .

This is the Elektronika "FL-01 Flanger". This seems to be kind of the same as the "PE-11" but is powered by an external power source (220V). To see the schematic CLICK HERE .

This is the Elektronika "EG-10 Equaliser". It is another table top type unit in a similar format to the FL-01 Flanger. It is also powered by an external power source (220V). It has 10 bands: 31Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz & 16kHz. I don't know if it's a graphic EQ or a parametric EQ. To see the schematic CLICK HERE . (Link currently inactive)

This is the Elektronika "Jet Fazer" which is a phaser-vibrato effect with a fuzz section. These were made during the 80s in USSR. The controls are Speed, Resonance, Distortion and Sustain. The switches have "Phaser", "Vibrato", "Mild" and "Rough" positions.

To download the schematic only CLICK HERE .
To see the instruction manual (minus schematic) CLICK HERE .

This is the Elektronika "PE-05 Flanger". The controls are Depth, Speed, Delay and Resonance. These seem to be rather hard to find. To see the schematic CLICK HERE .

This is the Elektronika "Fazer-2" which is a germanium transistor based phaser/vibrato pedal. The switch selects between the Phaser and Vibrato. Controls are Speed and Resonance (depth). There is a trim pot on the side that can be accessed with a flat head screwdriver which affects the tone. It is said to have a very nice warm tone. To see the schematic CLICK HERE .

This is the Elektronika "Compressor-Sustain(er)" which not so obviously is a fuzz pedal with some options rather than a proper compressor pedal. The "Sharp" switch gives a more extreme hi-gain mid frequency fuzz, keeping in tradition with Soviet fuzz pedals. The two controls (from left to right) are Distortion (gain of the fuzz) and Sustain (amount of sustain). These seem to be very hard to find. To see the schematic CLICK HERE .

This is the Elektronika "E-01 Equaliser". This is allegedly a parametric EQ, not a graphic EQ and is quite effective. There are six control sliders which include level, and five frequencies: 64Hz, 250Hz, 1000Hz, 3500Hz 125000Hz, each adjustable by +/- 12dB. It was offered in a blue or orange enclosure (possibly other colors as well). Apparently it requires a special external dual voltage power supply of 15V DC & 30V DC. There was also a stereo version of this which is basically like two of these stuck together. To see the schematic CLICK HERE (link currently inactive).

This is the Elektronika "E-02 Dual-Channel Equaliser". Not too much else to say about it, same features as the E-01 Equaliser. This one is a bit unusual for this time period because it has two channels. Also is apparently a parametric EQ. I have also seen these with a blue enclosure (there may be other colors as well). It has an internal power transformer with a 220V primary.

To see the schematic CLICK HERE . Still looking for a higher quality schematic on this one. This will at least give an idea of the circuit topology.

This is the Elektronika "Synchro Wah". It's a very unique autowah that is quacky and whooshy sounding. There are examples with blue, orange or green enclosures. The controls are Attack and Accent. To see the schematic CLICK HERE .

This is the Elektronika "B12-011". It is a multi-FX unit which has a wah, vibrato, phaser and compressor. To see the schematic CLICK HERE .

Here is the "Poltava", which in the west is a more well known fuzz-wah-vibrato. It's capable of some nice sounds. These were available in a few different colors; the least common variant is shown here. The vibrato (tremolo) has a speed control. These were manufactured in the very late 70s/early 80s. To see the schematic CLICK HERE .

Here is the "Ltava", which seems to be a hot-rodded Poltava with some additional features. It appears these were also offered in a few different colors.

This is the "EFFEKT-1". It is a fuzz-wah-vibrato with a speed control. It was one of the first successful guitar effects to be released in the USSR (1977-78). Many units were sold due to being inexpensive, the popularity of Jimi Hendrix, and similar types of music. The "EFFEKT-1" and the other two "EFFEKT" products below were developed under the supervision of Alexander Evgenievich Maistrovich.

To see the schematic CLICK HERE .

This the "EFFEKT-3". It is a distortion pedal with a phaser released in 1983.

To see only the schematic CLICK HERE .
To see the owner manual (with schematic included) CLICK HERE .

This is the "EFFEKT-4". It is a fuzz-wah-autowah pedal with an envelope sensitivity control. It was released in 1983 and was apparently intended for use by bass guitarists. To see the schematic CLICK HERE .

This is the "SPEKTR-1", a very unusual fuzz-wah-vibrato. It uses a mixture of germanium and silicon transistors and has two types of fuzz. The vibrato speed and depth are fixed.

To learn more about it and for access to schematics & instruction manual, CLICK HERE .

This is the "SPEKTR-2", a fuzz-wah. It uses a pair of toggle switches that poke thru the treadle to turn on/off each function. To see the schematic CLICK HERE .

This is the "SPEKTR-3". It is a fuzz-wah-autowah with similar features to the SPEKTR-2. One of the treadles controls the volume and the other one is for the wah function. To see the schematic & instruction manual CLICK HERE .

This is the "SPEKTR-4". It appears to be a SPEKTR-3 minus the volume pedal but at this point in time remains unverified. To see instruction manual and schematic, CLICK HERE .

This is the "Tesla AYZ 025". It is a very good sounding fuzz-wah with some interesting features, one of them being a frequency doubler. To see the schematic CLICK HERE .

This is the Tesla "Compressor-Sustainer" (AYZ 032). It is a compressor-sustainer pedal. To see the schematic CLICK HERE .

This is the Tesla "Attack Equalizer" (AYZ 031). It is a 2-band EQ pedal with a Bass, Treble and Volume control. To see the schematic CLICK HERE .

This is the Tesla "Equalizer" (AYZ 030). It is a 5-band EQ pedal with 80Hz, 200Hz, 500Hz, 1.5kHz & 4kHz frequency controls, and a Volume control. I don't have any other info on it at this time.

This is the Tesla "Over Drive" (AYZ 033). It is an overdrive pedal with a Overdrive and Volume control. It appears to operate on a 9V battery. It is said that it sounds similar to a Boss OD-1. To see the schematic CLICK HERE .

Here is the "SIGNAL-1" phase shifter. This nice sounding phaser I think is truly a very rare Soviet-era guitar effect. I like the way it looks. The switches are not very heavy duty and are the same odd 12-pin DPDT push button switches that were used in the Univox Uniwah, SPEKTR-1 and some Elektronika pedals. Most examples I have seen date to 1982.

To see the schematic CLICK HERE . Still looking for a higher quality schematic on this one... not sure I'll ever find one but I'll keep trying! This will at least give an idea of the circuit topology.

This is another very unusual and definitely rare pedal, the "Volna Autowah". It has a very unique and distinctive sound. I understand these were manufactured at the Novosibirsk Electromechanical Works, in Novosibirsk, Russia. To see the instruction manual and schematic CLICK HERE .

This is an interesting little passive mixer that was apparently manufactured in Leningrad, Russia. Specfically, it is said to have been made at the "VNIIPRA" military factory in the early to mid-80s. It has three inputs, three volume controls and one output. To see the instruction manual and schematic CLICK HERE .

Here is the "Atlant", which translates as Atlas. It is another very unusual and apparently quite rare fuzz-wah-volume pedal. I don't have much info on it at this time but the controls are a little unusual. There are two pots which are controlled by your foot, by sliding your foot on the ribbed "spindles" to turn them. Inside there is a gear attached to the potentiometers that turn a numbered gear which appears thru a window on the top, which indicates what setting you have it on. You can see that here HERE . These control the fuzz sensitivity and tone. The three "keys" at the top are very similar to the SPEKTR-1; you press them and it actuates a switch which is mounted on a bracket below these "keys". Big die cast enclosure built like a tank - it weighs 12 lbs! Apparently it operates on 12 volts. Still searching for a schematic on this one.

This is the "LEADER-1", which is a "guitar micro-synthesizer".

It has four effect sections, as follows;

Mixer: Guitar Level (dry signal), Sub-Octave, Octave and two "Rock Tones" (distortion).
Phaser: Depth and Frequency.
Controlled Filter: Start, Stop, Speed, Level and Resonance.
Modulator: Attack, Threshold and Attenuation.

It operates on a 220V power supply. They were manufactured in the 1980s and can create a lot of interesting sounds. To see the instruction manual and schematic CLICK HERE .

This is the "LEADER-2", which is a "guitar micro-synthesizer".

It has five effect sections, as follows:

"Tone Corrector", Flanger, Chorus, Solo, Rhythm

It operates on a 220V power supply. They were manufactured in the 1980s and can create a lot of interesting sounds. To see the instruction manual and schematic CLICK HERE .

This is the "ESKO 100", which is a Tape Delay + Fuzz/Vibrato/Octaver/Flanger. Wow that's a wild one! It utilized a tape delay circuit. It was apparently made in the early to mid-80s or so. It's capable of many interesting sounds which are actually quite musical. To see the schematics CLICK HERE .

There apparently was also a digital delay version of this unit, with the tape delay section omitted.

Here is the Estradin "EFFEKT-1" Flanger. It operates on 220V and has Frequency, Shift and Brightness controls. It is reported to sound something like the ElectroHarmonix "Electric Mistress". This example was made in 1987. To see the schematic and component layout CLICK HERE .

Here is the Estradin "EFFEKT-2" Phaser. It operates on 220V and has Frequency, Balance and Brightness controls. This example was made in 1990. To see the schematic and component layout CLICK HERE .

This is the Elita "Ekspromt" compressor-sustainer. The drive section has Drive, Tone and Level controls. The compressor section has Sustain and Level controls. Each section can be turned on/off independently. The "compressor" is said to have quite a long sustain. Looking at the inside of the pedal there appears to be an LDR/LED combo inside, along with several IC chips. It operates on 15V DC. These were made in the late 80s up to about the early 90s. The example shown here is from 1993. Still hunting for a schematic on this one.

This is the Elita "Quasichorus". This stereo chorus has four controls: Frequency, Depth, Delay and Brightness. It is unique sounding, with two outputs which are out of phase with each other. It operates on 15V DC. These were made in the late 80s up to the early 90s. To see the schematic and component layout CLICK HERE .