Cwejman PH-4


The PH-4 is a LFO module with four outputs that are offset in phase 90° each. Unlike normal quadrature LFOs it generates not only a sine waves but also triangles.

We currently do not accept pre-orders for Cwejman products. If you are interested in this module, please use the availability notification. The number of Cwejman circuits is limited. Therefore, we recommend you to order online IMMEDIATELY when a module becomes available. Enquiries via e-mail or telephone are usually not fast enough. (More detailed information can be found on the product page.)



The internal LFO can generate a sine or a triangle wave, the selection is done with a small switch. The modulation generator's frequency can be set manually (40s-6ms cycle length) and has voltage control, too
Level-CV is used for simultaneous modulation of all outputs' levels, e.g. in order to fade the LFOs in and out.
The voltage controlled offset function adds an offset voltage to all outputs i.e. they do not oscillate aorund 0V but above or below.
The eight LEDs indicate, rate, phase and waveform at once, barbershop-pole-style.

All Cwejman modules are screened against interferences, protected against reverse polarity and contain calibration options on the backside. (See photograph.)

Attention: Unlike other manufacturers, the red stripe of Cwejman's flat ribbon cable indicates the positive +12 V rail, not the negative one!


We currently do not accept pre-orders for Cwejman modules. For some products, there are waiting lists with pre-orders from the years 2013 to 2017, which are being processed as a matter of priority.
If you’d like to be informed as soon as this module is back in stock, please activate the availability notification via e-mail.
Please note: The number of Cwejman modules is always limited and much lower than the number of interested parties. Therefore, we recommend to order IMMEDIATELY and ONLINE if a Cwejman product becomes available. Enquiries via e-mail or telephone are usually not fast enough.
If the demand is higher than the supply, unfulfillable pre-orders will be deleted. In this case you’ll receive an e-mail. (Pre-orders on the waiting lists mentioned above are excluded from this policy.)


CV inputs: rate, offset, and level
outputs: 0°, 90°, 180°, 270°


3U Eurorack module, 10HP wide, <30mm deep
power consumption: 20-40mA

0.31 kg
Article Number
This product cannot be reserved. Please use the email notification.
€ 19% VAT excl. €394.12 € 19% VAT incl. €469.00
Excl. 19% VAT, Excl. shippingLieferzeit 1