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Line 15: The 22pF capacitors marked * are to prevent the op-amps from oscillating, however, due to the high value of the feedback resistor, the form a low pass filter. At 22pF, the effect is fairly insignificant. If you have an oscilloscope and can check these outputs, you may try omitting the 22pF capacitors. * The module will work on +/-12 volts or +/-15 volts.▼ == Construction == Line 44 ⟶ 46: {\| class="wikitable" ~~\|+ style="text-align:left"\|Pad identification~~ ! Pad ID!!style="text-align:left"\|Function \|- Line 80 ⟶ 81: \|} == ~~To set up~~Setup == <!-- file missing [[File:cgs_wire_cgs95v10_rev.jpg\|thumb\|center\|680px\|Example wiring for the Reverb.]] --> If you have access to an oscilloscope, you can monitor the input and of one of the "raw" reverb outputs, and adjust the GAIN trimmer so they match. Note that the reverb output will probably have greater excursions than the input signal, especially if you are just using a basic wave shape from a VCO. As such you are setting the level of the "bulk" of the waveform. The alternative method is to adjust the GAIN trimmer until they sound about the same. Line 142 ⟶ 143: ! colspan="2" align=center\|Misc \|- \| Ferrite ~~Bead~~bead\|\|3 (2) \|- \| 0.156 4 pin connector\|\|A=0 B=1 Line 156 ⟶ 157: * For the 20k trimmer, anything between 20k and 50k is adequate. * 330R refers to 330 ohms. 100n = 0.1μF. ▲* The module will work on +/-12 volts or +/-15 volts. * PCB is 6" x 1.5" with 3mm mounting holes 0.15" in from the edges. Extra holes are provided to match the CGS91 mounting rails, with left or right offsets, or centered. == CC-BY-NC == Readers are permitted to construct these circuits for their own personal use only. Ken Stone retains all rights to his work. == See also == Line 164 ⟶ 167: == References == * ''[https://web.archive.org/web/~~20180209234737fw_~~20180209234737f/http://www.cgs.synth.net:80/modules/cgs95_rev.html Reverb for music synthesizers.]'' ~~(archived)~~ by Ken Stone, 2013, with permission of the author - archived == External links == Line 171 ⟶ 174: * [http://www.accutronicsreverb.com/ www.accutronicsreverb.com] has further details on the Belton BTDR-2H, (Flash heavy site). * [http://groups.yahoo.com/group/cgs_synth CGS Synth discussion group], for discussion of locating parts, modifications and corrections etc. * [http://bompiler.com/pcb/cgs95 CGS95 BOM] at BOMpiler === Suppliers === * [https://web.archive.org/web/20181122000455/http://www.elby-designs.com/webtek/cgs/cgs95/cgs95_rev.html CGS95 Digital Reverb], revision 1, Elby Designs === Belton BTDR-2H suppliers === * [https://web.archive.org/web/20181112142238/http://www.smallbear-electronics.mybigcommerce.com/belton-btdr-2h-reverb-modules/ Small Bear Electronics LLC] * [https://www.thonk.co.uk/shop/belton-reverb-brick/ Thonk Ltd.] [[Category:CGS ~~modular~~signal processors]]