{"id":290,"date":"2012-11-27T17:33:19","date_gmt":"2012-12-15T00:12:25","guid":{"rendered":"http:\/\/homepage.univie.ac.at\/markus.breier\/php\/amp_ac\/?page_id=290"},"modified":"2025-05-13T09:33:05","modified_gmt":"2025-05-13T08:33:05","slug":"parts","status":"publish","type":"page","link":"https:\/\/www.freebird-guitars.at\/ac30\/welcome\/the-plans\/parts\/","title":{"rendered":"Parts"},"content":{"rendered":"

Here you can find the listing of the used components.<\/p>\n

I have bought the transformers I used from a eBay store, which exists no longer, but there are a lot of replacement transformers for AC30 available.<\/p>\n

The power transformer should have the following specs on the secondary side:<\/p>\n

275V – 0 – 275V @ 200mA sec1
\n3.1V – 0 – 3.1V or 0 – 6.3V sec2 @ 4.5 to 5.5 A (depending on the quantity of preamp tubes)
\n0 – 5V @ 2.0 A (for GZ34 tube rectifier)<\/p>\n

There are many output transformers available for AC30.<\/p>\n

I used „Mallory 150“ for coupling capacitors. I have been told that „Orange Drops“ are not the best choice in AC30, but i haven’t tried that out. I used carbon compositum resistor for anode and cathode resitors, otherwise I used metal film resistors. The metal film resistors I used are rated for 1 Watt, but as you can see with the carbon compositum resistors, 0.5 Watt should be sufficient.<\/p>\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Name<\/th>Value<\/th>Quantity<\/th>Type<\/th>\n<\/tr>\n<\/thead>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Resitors<\/td><\/td><\/td><\/td>\n<\/tr>\n
R1, R3, R8, R10<\/td>68K, 1W<\/td>4<\/td>metal film<\/td>\n<\/tr>\n
R2, R9, R19, R20<\/td>1M, 1W<\/td>4<\/td>metal film<\/td>\n<\/tr>\n
R6, R7, R16<\/td>100K, 1W<\/td>3<\/td>metal film<\/td>\n<\/tr>\n
R18<\/td>220K, 1W<\/td>1<\/td>metal film<\/td>\n<\/tr>\n
R36, R37<\/td>22K, 1W<\/td>2<\/td>metal film<\/td>\n<\/tr>\n
R17, R38<\/td>10K, 1W<\/td>2<\/td>metal film<\/td>\n<\/tr>\n
R21<\/td>47K, 1W<\/td>1<\/td>metal film<\/td>\n<\/tr>\n
R4, R11, R13, R27, R28, R29, R30<\/td>1K5, 1W<\/td>7<\/td>metal film<\/td>\n<\/tr>\n
R32,R33, R34, R35<\/td>100R, 1W<\/td>4<\/td>metal film<\/td>\n<\/tr>\n
R26, R26<\/td>2M2, 1W<\/td>2<\/td>metal film<\/td>\n<\/tr>\n
R5, R12<\/td>220K, 0.5W<\/td>2<\/td>Carbon compositum<\/td>\n<\/tr>\n
R14, R23, R24<\/td>100K, 0.5W<\/td>3<\/td>Carbon compositum<\/td>\n<\/tr>\n
R15<\/td>56K, 0.5W<\/td>1<\/td>Carbon compositum<\/td>\n<\/tr>\n
R22<\/td>1K2, 0.5W<\/td>1<\/td>Carbon compositum<\/td>\n<\/tr>\n
R31<\/td>270R\/ 5W<\/td>4<\/td>wire resitor<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Capacitors<\/td><\/td><\/td><\/td>\n<\/tr>\n
C2<\/td>0,01uF<\/td>1<\/td>Mallory 150<\/td>\n<\/tr>\n
C3, C15<\/td>0,0047uF<\/td>2<\/td>Mallory 150<\/td>\n<\/tr>\n
C4<\/td>0,1uF<\/td>1<\/td>Mallory 150<\/td>\n<\/tr>\n
C5<\/td>500pF<\/td>1<\/td>Silver Mica<\/td>\n<\/tr>\n
C6<\/td>120pF<\/td>1<\/td>Silver Mica<\/td>\n<\/tr>\n
C8, C10, C11, C11a C12<\/td>0,022uF<\/td>5<\/td>Mallory 150<\/td>\n<\/tr>\n
C9<\/td>47pF<\/td>1<\/td>Silver Mica<\/td>\n<\/tr>\n
C13, C14<\/td>0,047uF<\/td>2<\/td>Mallory 150<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
C1, C7<\/td>22uF \/ 35V<\/td>2<\/td>electrolytic cap axial<\/td>\n<\/tr>\n
C16<\/td>220uF \/ 25V<\/td>4<\/td>electrolytic cap axial<\/td>\n<\/tr>\n
C17, C18<\/td>22uF \/ 450V<\/td>2<\/td>electrolytic cap F&T axial<\/td>\n<\/tr>\n
C19<\/td>10uF \/ 350V<\/td>1<\/td>electrolytic cap F&T axial<\/td>\n<\/tr>\n
C20<\/td>22uF \/ 350V<\/td>1<\/td>electrolytic cap F&T axial<\/td>\n<\/tr>\n
C21<\/td>33uF \/ 350V<\/td>1<\/td>electrolytic cap F&T axial<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Potentiometers<\/td><\/td><\/td><\/td>\n<\/tr>\n
P1, P2, P3, P6<\/td>A 500K<\/td>4<\/td>Alpha 24mm log<\/td>\n<\/tr>\n
P4, P5<\/td>A 1M<\/td>2<\/td>Alpha 24mm log<\/td>\n<\/tr>\n
P7<\/td>A 250k Stereo<\/td>1<\/td>Alpha 24mm log<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Switches<\/td><\/td><\/td><\/td>\n<\/tr>\n
SW1 Power<\/td>2 pole On-Off<\/td>1<\/td>Apem 641H\/2<\/td>\n<\/tr>\n
SW3, SW4<\/td>1 pol On-On<\/td>2<\/td>Miniswitch<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Tube sockets<\/td><\/td><\/td><\/td>\n<\/tr>\n
Noval<\/td>Belton<\/td>7<\/td>Chassis mount<\/td>\n<\/tr>\n
Oktal<\/td>Belton<\/td>1<\/td>Chassis mount<\/td>\n<\/tr>\n
Tube retainers EL84<\/td><\/td>4<\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Jacks<\/td><\/td><\/td><\/td>\n<\/tr>\n
J1, J2, J3, J4, J5, J6<\/td><\/td>6<\/td>mono w\/ switch<\/td>\n<\/tr>\n
power jack w\/ fuse holder<\/td><\/td>1<\/td><\/td>\n<\/tr>\n
fuse holder<\/td><\/td>1<\/td><\/td>\n<\/tr>\n
fuse primary<\/td>3A, slow<\/td>1<\/td>5mm<\/td>\n<\/tr>\n
fuse HAT<\/td>500mA, slow<\/td>1<\/td>5mm<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Transformers<\/td><\/td><\/td><\/td>\n<\/tr>\n
power transformer<\/td><\/td>1<\/td>Vox<\/td>\n<\/tr>\n
output transformer<\/td><\/td>1<\/td>Vox<\/td>\n<\/tr>\n
choke<\/td>20H<\/td>1<\/td>Hammond 193C<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Boards<\/td><\/td><\/td><\/td>\n<\/tr>\n
terminal<\/td>2 + 1 lugs<\/td>1<\/td><\/td>\n<\/tr>\n
fiber boards<\/td>80 x 500mm<\/td>1<\/td><\/td>\n<\/tr>\n
Eyelets<\/td><\/td><\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Tubes<\/td><\/td><\/td><\/td>\n<\/tr>\n
V1, V2, V3<\/td>ECC83<\/td>3<\/td>JJ<\/td>\n<\/tr>\n
V4, V5, V6, V7<\/td>EL84<\/td>4<\/td>JJ<\/td>\n<\/tr>\n
V8<\/td>GZ34<\/td>1<\/td>JJ<\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Wiring<\/td><\/td><\/td><\/td>\n<\/tr>\n
Shielded wire<\/td>0,5mm2<\/td>1<\/td>shielded<\/td>\n<\/tr>\n
red<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
white<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
blue<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
yellow<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
green<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
black<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
yellow-green<\/td>0,5mm2<\/td>1<\/td>Silikon<\/td>\n<\/tr>\n
Isolation tube<\/td>1mm<\/td>3<\/td>Silikon<\/td>\n<\/tr>\n
shrink tube<\/td><\/td><\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n
Misc.<\/td><\/td><\/td><\/td>\n<\/tr>\n
Knobs<\/td>Chickenheads<\/td>7<\/td>Chickenheads<\/td>\n<\/tr>\n
Chassis Pre<\/td>1441-20<\/td>1<\/td>black<\/td>\n<\/tr>\n
Chassis Power<\/td>1441-30<\/td>1<\/td>balck<\/td>\n<\/tr>\n
Jewel<\/td><\/td>1<\/td><\/td>\n<\/tr>\n
lamp holder<\/td><\/td>1<\/td><\/td>\n<\/tr>\n
lamp<\/td>6,3V<\/td>1<\/td><\/td>\n<\/tr>\n
cable bushing<\/td>8mm<\/td>2<\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n","protected":false},"excerpt":{"rendered":"

Here you can find the listing of the used components. I have bought the transformers I used from a eBay store, which exists no longer, but there are a lot of replacement transformers for AC30 available. The power transformer should have the following specs on the secondary side: 275V – 0 – 275V @ 200mA … <\/p>\n

Mehr \u00fcber „Parts“ <\/span>Lesen<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":236,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-290","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/pages\/290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/comments?post=290"}],"version-history":[{"count":6,"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/pages\/290\/revisions"}],"predecessor-version":[{"id":1237,"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/pages\/290\/revisions\/1237"}],"up":[{"embeddable":true,"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/pages\/236"}],"wp:attachment":[{"href":"https:\/\/www.freebird-guitars.at\/ac30\/wp-json\/wp\/v2\/media?parent=290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}