CGS pulse divider and Boolean logic (previous revisions): Difference between revisions

← Older edit

CGS pulse divider and Boolean logic (previous revisions) (view source)

Revision as of 14:50, 19 July 2022

259 bytes added , 1 year ago

m

Text replacement - " - archived" to " - archived"

VisualWikitext

Rob Kam

Bureaucrats, Interface administrators, Administrators

2,276

edits

Revision as of 19:16, 16 November 2018 (view source) Rob Kam (talk \| contribs) m (Rob Kam moved page CGS pulse divider and boolean logic (previous revisions) to CGS pulse divider and Boolean logic (previous revisions) without leaving a redirect) ← Older edit		Latest revision as of 14:50, 19 July 2022 (view source) Rob Kam (talk \| contribs) m (Text replacement - " - archived" to " - archived") Tag: Manual revert
(7 intermediate revisions by the same user not shown)
Line 23: == Construction == [[File:~~cgs_pcb_cgs36v13~~cgs_pcb_cgs36_pulse_divider.gif\|thumb\|center\|600px\|The component overlay. ~~Click~~Rev ~~through for an enlarged printable version~~1.1.]] [[File:cgs_pcb_cgs36v13.gif\|thumb\|center\|600px\|The component overlay Rev 1.3. Click through for an enlarged printable version.]] Note: '''On the first run of the PCBs, the 820R and 680R in the AND gate were reversed.''' To get around this they were swapped in assembly. If not one output will be a little lower than the other. This isn't critical. Note: '''On the first run of the REV1.2 PCBs, the boards were actually ~~labelled~~labeled REV1.1.''' They are identifiable because this revision mark is in the same box as the CGS36 ID. All Rev1.2 versions: the 1k5 in the second inverter should be 1k8. VER1.3 PCBs have the upper part of the output dividers marked as RA on the PCB. These resistors are 1k8 for +/-15V operation and 1k5 for +/-12 volt operation. Likewise the two 1k8 resistors in the inverters should be 1k5 for 12 volt operation. The two 1k5 resistors in the OR and AND gates could probably be increased to 1k8 for 15 volt operation. Check your output voltages when you have assembled them. Ideally the voltages will swing between 0 volts and +5 volts. Some small variance either way is nothing to be concerned about. Line 153 ⟶ 154: * On some boards there is an unmarked capacitor near the power connector. This can be anything in the range of 10n to 100n, and ceramic, or it can be omitted altogether. * PCB measures 6" x 2" with 3mm mounting holes 0.15" in from the edges. == 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 160 ⟶ 164: == References == * [https://web.archive.org/web/~~20161227161727fw_~~20161227161727f/http://www.cgs.synth.net:80/modules/cgs36v1_pulse_divider.html Pulse Divider and Boolean Logic for music synthesizers.] ~~(archived)~~ by Ken Stone, 2001, with permission of the author - archived == External links == * [http://groups.yahoo.com/group/cgs_synth CGS Synth discussion group], for discussion of locating parts, modifications and corrections etc. [[Category:CGS ~~modular~~clock/gate/trigger processors]]