tag:blogger.com,1999:blog-6100511197805579796.post862342443291842926..comments2024-02-14T18:43:36.096+01:00Comments on Davide Gironi blog: D02: a simple 80W Bass guitar amplifier built around the TDA7294 ICDavide Gironihttp://www.blogger.com/profile/16366076989473118278noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-6100511197805579796.post-31301956592464757932023-01-01T07:50:30.503+01:002023-01-01T07:50:30.503+01:00Thankyou you are the bestThankyou you are the bestZaraki1337https://www.blogger.com/profile/04815656896624384794noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-45240221943516886622022-12-29T11:15:21.255+01:002022-12-29T11:15:21.255+01:00Hello, find it here: https://file.io/lNrr6svuhkHO ...Hello, find it here: https://file.io/lNrr6svuhkHO (2 weeks expire)Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-26113024528046503402022-04-19T17:35:44.542+02:002022-04-19T17:35:44.542+02:00You can use it, but you should change R3 and R4, a...You can use it, but you should change R3 and R4, and most important the main amplifier chip TDA7294 will operate at a lower voltage, it means less output power (see table 5 of ST datasheet https://www.st.com/resource/en/datasheet/tda7294.pdf)Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-13858655497121811362022-04-19T16:41:26.998+02:002022-04-19T16:41:26.998+02:00Can I use a power transformer with 220v in main an...Can I use a power transformer with 220v in main and secondary with 18-0-18v it's 3amp rated? How many ampere in the diode bridge if I use this transformer?Anonymoushttps://www.blogger.com/profile/15583829790502480160noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-58645068429148728292019-06-28T14:58:04.928+02:002019-06-28T14:58:04.928+02:00Hello, thank you! In the version you see here it&#...Hello, thank you! In the version you see here it's a +22V 0V -22V that i've around here, but I've changed it this year with a +30V 0V -30V unmounted from an old amplifier.Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-21577243786710299582018-10-08T00:49:43.713+02:002018-10-08T00:49:43.713+02:00Hello Davide,
Great blog! One question: what mode...Hello Davide,<br /><br />Great blog! One question: what model power transformer are you using?<br /><br />Cheers,<br />TimTim Reynoldshttps://www.blogger.com/profile/14390323317941198499noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-20509508470427171922018-03-26T20:09:43.550+02:002018-03-26T20:09:43.550+02:00...and thank you of course for your comment!...and thank you of course for your comment!Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-76790275726245973882018-03-26T20:09:11.945+02:002018-03-26T20:09:11.945+02:00Hello Arnaud, my typo mistake, the preamp is +VCC1...Hello Arnaud, my typo mistake, the preamp is +VCC15, not VCC, i will fix in a few.<br />You can download the schematics from here: https://expirebox.com/download/8b6049771a3745820f1066fbc40bdc30.html (link expires in 2 days)Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-14804094851368313862018-03-26T16:14:53.806+02:002018-03-26T16:14:53.806+02:00Hello Davide,
Great project, very efficient !
Two...Hello Davide,<br /><br />Great project, very efficient !<br />Two questions :<br /> - in your schema, alimentation outputs VCC and VCC15 in positive and negative, but you only use VCC. Haven't you used VCC15 for preamp and equalizer ?<br /> - I see that schema is in Eagle format. Is it possible for you to share it ? Or at least Bill of Materials ?<br /><br />Thank you in advance, and keep going, your projects are great ! <br />Arnaud (from France)arnohttps://www.blogger.com/profile/15420663781100867210noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-42341510315596115032017-08-07T19:54:18.220+02:002017-08-07T19:54:18.220+02:00Thank you for this comment!Thank you for this comment!Davide Gironihttps://www.blogger.com/profile/16366076989473118278noreply@blogger.comtag:blogger.com,1999:blog-6100511197805579796.post-90858364939637009822017-08-06T15:46:38.026+02:002017-08-06T15:46:38.026+02:00thanks man!!thanks man!!Anonymoushttps://www.blogger.com/profile/16286073526976547612noreply@blogger.com