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M406M
Type module
Category DYNAMICS
Try it simulator & front panel
Earliest dated evidence 1968|1 — estimate from a dated variant
Evidence from M406
Confidence family
Variants M406, M406A, M406B, M406C
Folder Modules/DYNAMICS/M406M

Front panel

Pinout & connections

No page of its own numbers M406M's contacts: these are its variant M406's, drawn faded — not confirmed for M406M.

EDGE CONNECTOR · 1–22NUMBERED SIDE · AS ON M4061: COMPRESSOR IN audio in · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 11COMPRESSOR IN +IN2: COMPRESSOR IN audio in · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 12COMPRESSOR IN −IN345678910111213: COMPRESSOR OUT audio out · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 113COMPRESSOR OUT +OUT14: COMPRESSOR OUT audio out · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 114COMPRESSOR OUT −OUT15: METER OUT audio out · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 115METER OUT +OUT16: METER OUT audio out · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 116METER OUT −OUT17: SIDE CHAIN control / tally · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 117SIDE CHAINCTL18: COMMON ground / common · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 118COMMONGND19: COMMON ground / common · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 119COMMONGND20: +24 V power rail · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 120+24 VPWR2122: +48 V power rail · confidence variant (from a variant) rto-144 · M406.rto144.json, p. 122+48 VPWR
KEYIN audio inOUT audio outPWR power railGND ground / commonCTL control / tallyvariant
M406Mpins as on its variant M406 (not confirmed for M406M)+24 V 20+48 V 22M406MCOMPRESSOR IN1·2COMPRESSOR OUT13·14METER OUT15·16SIDE CHAIN 17COMMON 18·19

pinout (SVG) · connections (SVG) · pins (JSON)

Pin evidence — 11 contacts
PinSignalKindConfidenceRead fromSource
1COMPRESSOR INaudio invariantrto-144M406.rto144.json, p. 1
2COMPRESSOR INaudio invariantrto-144M406.rto144.json, p. 1
13COMPRESSOR OUTaudio outvariantrto-144M406.rto144.json, p. 1
14COMPRESSOR OUTaudio outvariantrto-144M406.rto144.json, p. 1
15METER OUTaudio outvariantrto-144M406.rto144.json, p. 1
16METER OUTaudio outvariantrto-144M406.rto144.json, p. 1
17SIDE CHAINcontrol / tallyvariantrto-144M406.rto144.json, p. 1
18COMMONground / commonvariantrto-144M406.rto144.json, p. 1
19COMMONground / commonvariantrto-144M406.rto144.json, p. 1
20+24 Vpower railvariantrto-144M406.rto144.json, p. 1
22+48 Vpower railvariantrto-144M406.rto144.json, p. 1

Pictures

1968 - M406M - Compressors.jpg1968 - M406M - wbsps - module - m406m compressors_small.jpg

Price history

Year Kind Price Listed as Effective Source
2005|38 used market value 250.00 M406M Compressors wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/old website/PriceGuide.htm
2006|39 used market value 250.00 M406M Compressors wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/jan 2006 shell/priceguide.htm

Photos & scans (2)

Year File
1968|1 1968 - M406M - Compressors.jpg note
1968|1 1968 - M406M - wbsps - module - m406m compressors_small.jpg note
An archive by Anthony Peter Kuzub · WBSps.Kuzub.com · WBSps.ca
generated from M406M.md