G7 BOM for Germany

sirko · Feb 3, 2012

Hi,

I want to build a Gyraf G7 tube mic. Could you please check this BOM, all electronic parts are from http://de.rs-online.com/ and http://www.reichelt.de/ in Germany. Especially for the capacitors i'm not shure if they fit on the pcb and their tolerance is ok.

G7 Tube Mic Parts List
---------------------------------------
2 pcs. 1G resistor: RS Components 701-8207
1 pcs. 33M resistor: Reichelt 1/4W 33M
2 pcs. 470K resistors: Reichelt 1/4W 470K
1 pcs. 100K resistor: Reichelt 1/4W 100K
2 pcs. 10K resistors: Reichelt: 1/4W 10,0K
1 pcs. 1K6 resistor: Reichelt 1/4W 1,6K
1 pcs. 220R resistor: Reichelt 1/4W 220

------------------------
1 pcs. 100u/35V Highgrade Eletrolytic capacitor, Reichelt: RAD FC 100/35
2 pcs. 2u2/160V Polyester capacitors, Reichelt: MKS-4-250 2,2µ
1 pcs. 1u/63V Polyester capacitors, Reichelt: MKS-4 1,0µ
2 pcs. 100nF/160V Polyester capacitor, Reichelt: MKS-4-250 100N
1 pcs. 10nF/160V Styroflex capacitor, Reichelt: STYROFLEX 10N
1 pcs. 1nF/160V Styroflex capacitor, Reichelt: STYROFLEX 1,0N

------------------------- PSU
(220V Model)
1 pcs. Transformer 220:9V, ~5VA,
1 pcs. Transformer 220:15V, ~3VA,

1 pcs. IC-Regulator, LM317, Reichelt: LM 317-220
2 pcs. Bridge Rectifiers, 250V/1A

2 pcs. Electrolytic capacitors, 470uF/200V, Reichelt: BSN 470/200
1 pcs. Electrolytic capacitor, 2200uF/25V, Reichelt: RAD FC 2.200/25
1 pcs. Electrolytic capacitor, 10uF/35V, Reichelt: RAD FC 10/50

1 pcs. Resistor, 1K8 1/4W, Reichelt: 1/4W 1,8K
OR Trimmer, 4K7
1 pcs. Resistor, 470R 1/4W, Reichelt: 1/4W 470
1 pcs. Resistor, 10K Ohm, 1W, Reichelt: 1W 10K
2 pcs. Resistors, 100K Ohm, ½W, Reichelt: 1W 100K

1 pcs. Metal box for the PSU

1 pcs. 7-pole XLR connector, Female, Chassis mount: RS-Components 448-7215
1 pcs. 3-pole XLR connector, Male, Chassis mount (for output), RS-Components 464-729

1 pcs. Rotary switch, 1 pole/3way (polar pattern select)

1 pcs. IEC Fused power inlet + T315mA fuse

1 pcs. Mains Power switch
1 pcs. Mains Power indicator light (optional)

Regards
Sirko

Sredna · Feb 3, 2012

Both RS and Reichelt state the RM (German-Rastermass = legspacing) of their capacitors.

Just measure the spacing on the PCB and order accordingly.

From your list it´s impossible to know exactly which component you mean concerning tolerance and spacing. So how could someone check this for you?

It really doesn´t matter, just order the right values (uF, Voltage and spacing) and you´ll be fine!

Regarding the resistors, I´d rather choose the standard 1/2 Watt (or 0,6W) instead of 1/4W to be on the safe side .

sirko · Feb 7, 2012

Thank you.

I'm not shure about the WIMA caps and their 20% tolerance:

2 pcs. 2u2/160V Polyester capacitors, Reichelt: MKS-4-250 2,2µ
1 pcs. 1u/63V Polyester capacitors, Reichelt: MKS-4 1,0µ
2 pcs. 100nF/160V Polyester capacitor, Reichelt: MKS-4-250 100N

And about the "Highgrade Eletrolytic capacitor". Is the Panasonic highgrade enough?

sirko · Feb 8, 2012

BOM is complete now.

1 pcs. Large-diagphram capsule, RK-47 from microphone-parts.com
1 pcs. EF86 Audio Pentode
1 pcs. Noval pcb socket (for EF86) http://www.tube-town.net Art.Nr.: sk13

1 pcs. Lundahl LL1538 5:1+1 input transformer. I took instead:
Haufe ST8456 transformer plus Haufe ST8456 to Lundahl LL1538 adapter PCB from:
http://www.groupdiy.com/index.php?topic=39570.0

2 pcs. 1G resistor: RS Components 701-8207
1 pcs. 33M resistor: Reichelt 1/2W 33M
2 pcs. 470K resistors: Reichelt 1/2W 470K
1 pcs. 100K resistor: Reichelt 1/2W 100K
2 pcs. 10K resistors: Reichelt: 1/2W 10,0K
1 pcs. 1K6 resistor: Reichelt 1/2W 1,6K
1 pcs. 220R resistor: Reichelt 1/2W 220

------------------------
1 pcs. 100u/35V Highgrade Eletrolytic capacitor, Banzaimusic 25353
2 pcs. 2u2/160V Polyester capacitors, Banzaimusic 18714
1 pcs. 1u/63V Polyester capacitors, Banzaimusic 18713
2 pcs. 100nF/160V Polyester capacitor, Banzaimusic 30873
1 pcs. 10nF/160V Styroflex capacitor, Reichelt: STYROFLEX 10N
1 pcs. 1nF/160V Styroflex capacitor, Reichelt: STYROFLEX 1,0N

------------------------- PSU
(220V Model)
1 pcs. Transformer 220:9V, ~5VA, RS Components 671-8912
1 pcs. Transformer 220:15V, ~3VA, RS Components 671-8924

1 pcs. IC-Regulator, LM317, Reichelt: LM 317-220
2 pcs. Bridge Rectifiers, 250V/1A, Reichelt B250C1500RUND (2A)

2 pcs. Electrolytic capacitors, 470uF/200V, Reichelt: BSN 470/200
1 pcs. Electrolytic capacitor, 2200uF/25V, Reichelt: RAD FC 2.200/25
1 pcs. Electrolytic capacitor, 10uF/35V, Reichelt: RAD FC 10/50

1 pcs. Resistor, 1K8 1/4W, Reichelt: 1/2W 1,8K
1 pcs. Resistor, 470R 1/4W, Reichelt: 1/2W 470
1 pcs. Resistor, 10K Ohm, 1W, Reichelt: 1W 10K
2 pcs. Resistors, 100K Ohm, ½W, Reichelt: 1W 100K

1 pcs. Metal box for the PSU, Banzaimusic 20461

1 pcs. 7-pole XLR connector, Female, Chassis mount: RS-Components 448-7215
1 pcs. 3-pole XLR connector, Male, Chassis mount (for output), RS-Components 464-729

1 pcs. Rotary switch, 1 pole/3way (polar pattern select) Banzaimusic 31920

1 pcs. IEC Fused power inlet, Reichelt PL FPG2-40
T315mA fuse, Reichelt TRÄGE 0,315A

1 pcs. Mains Power switch, Reichelt KS 4
1 pcs. Mains Power indicator light (optional) Banzaimusic 15790

Timothytitus88 · Feb 10, 2012

Hi..

I just took delivery of some 1G resistors for my G7 Build. Was curious about which ones you chose, so I put your RS part number into their search...... Seems 701-8207 is for a 1Meg resistor - You need 1Gig.

Try stock number 247-7856.

Cheers,

Tim