DIY boutique amps, pedals, mod kits, proto-type circuits, etc - Post them here!

[modmod]

hello everyone, im from cebu, I want to know who among you have transistors like BC182 germanium NPN ata to or BC108 or BC109, or other germanium transistors and this JFET 2SK30A? Bibili sana ako nito, but not here in Cebu, so hopefully you guys have these.   

Bro ilang kailangan mo madami akong 2SK30A JFET.kadalasan sa fet switching siya ginagamit like boss and ibanez etc.Saan mo gagamitin

[jmorrero]

itatago ko na to, ikakahon nyahahahah... Btw may mga parts pa akong natira just email or pm nyo na lang ako like ad712 opamp... free. daanan na lang sa area ko.



http://jmorrero.com/index.php?option=com_content&task=view&id=1&Itemid=2


Amp naman ang kinahihiligan ko eh. Natapos ko rin dumble amp clone. gamit ko chassis ng fender concert 2 amp.

[kurtseth]

sorry baka OT 

guys need your expert advice re sa DIY iRig cable..cant afford ko ang irig cable kaya DIY
baka sakali may makatulong : )

from my research iRig implemented an impedance correction circuit unlike the PRS na parang guitar-iphone cable lang kaya mas maganda yun sound

below is a simple guide on how to construct the cable na nahanap ko sa net
http://www.instructables.com/id/Make-a-cable-to-use-your-iPhone-or-iPod-Touch-as-a/

now the problem is how to match the impedance of the the guitar and the iphone audio input.. possible kaya ang DIY circuit? may workaround ba?

iphone tech sheet fomr the net
Headphones
Stereo earphones with built-in microphone
Frequency response: 20Hz to 20,000Hz
Impedance: 32 ohms

TIA   

+1

lapit na ng ipod touch ko

so imma get the irig hehehe

hope to hear updates about the cable

more power to the pinoy diyers

[francis123456789]

mga sir! greetings po, im francis at di pa po ako masyadong matagal dito sa philmusic,balak ko po kasi gumawa ng diy / clone ng phase90,baka po may schematic kayo na pwde hingiin? kung pwde din po add po kayo pics ng harap at likod ng PCB kung meron. sa mga magrereply po kahit pm nalang po kayo kasi baka di ko na mhanap tong thread at mga reply nyo.
thank you po and god bless

[chadrhix]

sorry baka OT 

guys need your expert advice re sa DIY iRig cable..cant afford ko ang irig cable kaya DIY
baka sakali may makatulong : )

from my research iRig implemented an impedance correction circuit unlike the PRS na parang guitar-iphone cable lang kaya mas maganda yun sound

below is a simple guide on how to construct the cable na nahanap ko sa net
http://www.instructables.com/id/Make-a-cable-to-use-your-iPhone-or-iPod-Touch-as-a/

now the problem is how to match the impedance of the the guitar and the iphone audio input.. possible kaya ang DIY circuit? may workaround ba?

iphone tech sheet fomr the net
Headphones
Stereo earphones with built-in microphone
Frequency response: 20Hz to 20,000Hz
Impedance: 32 ohms

nosebleed area haha (from http://www.moollon.com/techntip/impedance_e.asp)

1) Single coil pickup
In general, a traditional single coil has resistance R = 5.8 KΩ = 5800 Ω and inductance L = 2.3 H, approximately. As mentioned above, ƒ = 1000 Hz because impedance is measured at this frequency.

Z = R + 2πƒL = 5800Ω + 2π x 1000Hz x 2.3H = 20251Ω = 20.251KΩ

With higher output single coil pickups, values of R and L will increase and impedance gets higher accordingly.
2) Humbucker pickup
A traditional humbucker pickup has resistance R = 8.5 KΩ = 8500 Ω and inductance L = 4.6 H, approximately. With the same reason as in a single coil pickup, ƒ = 1000 Hz.

Z = R + 2πƒL = 8500Ω + 2π x 1000Hz x 4.6H = 37403Ω = 37.403KΩ

With higher output humbucker pickups, values of R and L will increase and impedance gets higher accordingly.

So we can say the range of electric guitar impedance is around 20 ~ 40 KΩ.
Note that this is just for a passive pickup without an onboard preamp circuit. In active pickups, impedance is as low as 10 KΩ or less due to the amplification by the active circuit.



TIA   

[quaternotetriplet]

itatago ko na to, ikakahon nyahahahah... Btw may mga parts pa akong natira just email or pm nyo na lang ako like ad712 opamp... free. daanan na lang sa area ko.



http://jmorrero.com/index.php?option=com_content&task=view&id=1&Itemid=2


Amp naman ang kinahihiligan ko eh. Natapos ko rin dumble amp clone. gamit ko chassis ng fender concert 2 amp.

sir jim.. meron pa bang natirang kit pang reverb?

[quaternotetriplet]

wala na bro nagamit ko na yung last reverb module

ah san mo binili yun? sa General guitar gadgets? o bumili ka ng isa tapos tinrace mo?

meron pala akong alam na pinagkukunan ng belton reverb module.

[plugzzzz]

ah san mo binili yun? sa General guitar gadgets? o bumili ka ng isa tapos tinrace mo?

meron pala akong alam na pinagkukunan ng belton reverb module.

meron pinag kukuhanan d2 ng belton??? bumili pa kasi ako online smallbear syang kung alam ko lang meron pla d2 cgru medyo naka mura ng konti for sure

[jmorrero]

meron pinag kukuhanan d2 ng belton??? bumili pa kasi ako online smallbear syang kung alam ko lang meron pla d2 cgru medyo naka mura ng konti for sure

saan yan hahahaha. baka gumawa ako ng tube based na reverb. Kailan EB pala? jam tayo sa inyo minsan. daan kami ni ibanezman

[quaternotetriplet]

meron pinag kukuhanan d2 ng belton??? bumili pa kasi ako online smallbear syang kung alam ko lang meron pla d2 cgru medyo naka mura ng konti for sure

Hindi sa ibang bansa din.. direct sila. hindi sila nagbebenta sa end user.. nakapuslit lang ako nung nagaaply.

[plugzzzz]

saan yan hahahaha. baka gumawa ako ng tube based na reverb. Kailan EB pala? jam tayo sa inyo minsan. daan kami ni ibanezman

sige ba magkano mo bebenta yung belton if ever....tube base reverb parang yung fuch and trex ayus yun jim kelan mo sisimulan yang project na yan.... also kamusta yung gawa mong amp....geh jamming welcome naman lahat ng philmusician yun lang liit place ko hehehe....

[jmorrero]

sige ba magkano mo bebenta yung belton if ever....tube base reverb parang yung fuch and trex ayus yun jim kelan mo sisimulan yang project na yan.... also kamusta yung gawa mong amp....geh jamming welcome naman lahat ng philmusician yun lang liit place ko hehehe....

pag nagkatime simulan ko yung project. kaso natapos ko na rin dumbleator ko, built in na sya sa loob ng amp. may on/off pa rin. may ad712 pa ako dito baka magamit mo. daan ka minsan

[plugzzzz]

pag nagkatime simulan ko yung project. kaso natapos ko na rin dumbleator ko, built in na sya sa loob ng amp. may on/off pa rin. may ad712 pa ako dito baka magamit mo. daan ka minsan

ok cge ba ayan ba yung secret OPamp ng zendrive???...

[jmorrero]

ok cge ba ayan ba yung secret OPamp ng zendrive???...

hahahahah

Actual zendrive circuit
 di ito yung latest ng zendrive layout o circuit. may konte syang changes sa board




Some of my opamp collection




Dzound year 2010  




ipinost ko rin yan sa FSB
http://www.freestompboxes.org/viewtopic.php?f=7&t=268&hilit=zendrive&start=240

[plugzzzz]

hahahahah

Actual zendrive circuit
 di ito yung latest ng zendrive layout o circuit. may konte syang changes sa board




Some of my opamp collection




Dzound year 2010  




ipinost ko rin yan sa FSB
http://www.freestompboxes.org/viewtopic.php?f=7&t=268&hilit=zendrive&start=240

daming opamp nyan hahaha iisaisahin  para makuha makuha yung secret op amp

[jmorrero]

daming opamp nyan hahaha iisaisahin  para makuha makuha yung secret op amp

Di lang naman dapat opamp ang bantayan, tamang mga diode at transitor at schem

[plugzzzz]

Di lang naman dapat opamp ang bantayan, tamang mga diode at transitor at schem

i know lahat ng components dapat the same pati pot nga eh if you want an exact clone..

[jmorrero]

i know lahat ng components dapat the same pati pot nga eh if you want an exact clone..

forward voltage ng clipping dapat na sa 2:1 ratio. Btw yung pf na cap sa zen ay hindi silver mica, naubusan lang ako ng tamang value ng pf at type kaya inilagay ko pansamantala sa dzound ko sa photo ay mica. Muliti-layer ceramic cap dapat. Latest zendrive has 4 pcs of diode and 2 pcs of transistor, 9 pcs of resistor, 2 pcs of electrolytic cap, 1 opamp, 4 pots. wiring dapat ng pot nasa tama, kung alin ang nasa 1 and 3 pin ng pot. Malaki ang effect sa overall tone ng circuit



Dzound circuit year 2010

[arkeetar]

^^^^^ fafing fafi  \m/ set na sana EB 

[jimy james]

itatago ko na to, ikakahon nyahahahah... Btw may mga parts pa akong natira just email or pm nyo na lang ako like ad712 opamp... free. daanan na lang sa area ko.



http://jmorrero.com/index.php?option=com_content&task=view&id=1&Itemid=2

Muzta na jimiboy? to togs kaba sa opening ng bar ni papotz?

pag naka libre, daanan ko na yung ELB MUD 

binibenta daw ni anton yng Hanzo? Pupunta kaba sa kasal nya?

[quaternotetriplet]

@ sir jim

alam mo ba kung pano lagyan ng standby mo ung tube amp ko?

nag google ako wa ako makita

BTw, gawa pala ni mang raul ito.. I have no to to visit mang raul e.

[jmorrero]

Muzta na jimiboy? to togs kaba sa opening ng bar ni papotz?

pag naka libre, daanan ko na yung ELB MUD 

binibenta daw ni anton yng Hanzo? Pupunta kaba sa kasal nya?

sige bro pm mo lang ako...

@ sir jim

alam mo ba kung pano lagyan ng standby mo ung tube amp ko?

nag google ako wa ako makita

BTw, gawa pala ni mang raul ito.. I have no to to visit mang raul e.

madali lang bro kaya mo naman eh, may schematic ng fender. Mula dun makukuha mo na idea ng paglalagay ng standby

[quaternotetriplet]

sige bro pm mo lang ako...
madali lang bro kaya mo naman eh, may schematic ng fender. Mula dun makukuha mo na idea ng paglalagay ng standby

anong model ng amp yung merong stanby?

natatakot ako baka makoryente ako.. sabi sa mga warning high voltage daw tube.

[pie-key]

meron pa po bang AD712? san po location niyo kuya jm..... puwede po ba meet up kuya if ever na magkataon may lakad po kayo..... ako na lang po pupunta sa location niyo..... salamat po.... kesa bumili pa ko sa shop sa inyo na lang po.... and how much po sa belton reverb tank.... buy po sana ako.... for a reaspnable price po sana...... salamat sir......

[pie-key]

kelan po pedal shoot out..... eyeball at jaminuman........ im preparing na po for a design..... sana po original builds po tayo.... like SH and jmorrero pedals..... original design po and not remodeled or cloned modified...... lets add complexity of the build..... at yung kakayahan ng DIYer to build an original design is a big plus at contribution sa DIY community...... hehehehehehe.... timplahan na ng tunog to......

sir JM reply po kayo ah.... salamat.....