LM308 suitable sub

[Tilladude]

Vedy eeinteressstinnng, It has filed for future reference.

Dennis

[Cyclonite]

Be careful for forged LM308s, These are just some other opamp, remarked as LM308, these were discussed at some point in the TGS thread.

TL081 works (and you don't need the 100pFcapacitor), on my TGS both LM308 and TL081 perform similar.

Good Luck!

Molzar

Hi @Molzar,

This dose not surprise me at all, for forging components goes way back in time. Even the once popular Silicon Power Transistor 2N3055 was forged by stamping old Germanium transistors with the 2N3055 logo.

The LM308 has been replaced in many (if not most) applications by the Modern OP07 Op-Amp at about $1 a piece, and it is also widely available too. And the pin-compatible TL081 is even more cheaper than the OP07. There is really no reason to be Nostalgic about the LM308 anymore.

Regards,

Robert

Attachment:

OP07 Datasheets (2 x RARed Part-Files):

OP07 - Ultralow Offset Voltage Operational Amplifiers (Analog Devices).pdf
OP07 - Ultralow Offset Voltage Operational Amplifiers (Intersil).pdf
OP07 - Ultralow Offset Voltage Operational Amplifiers (Maxim).pdf
OP07 - Ultralow Offset Voltage Operational Amplifiers (National Semiconductor).pdf
OP07 - Ultralow Offset Voltage Operational Amplifiers (Raytheon Semiconductor).pdf
OP07 - Ultralow Offset Voltage Operational Amplifiers (STMicroelectronics).pdf

[Molzar]

Be careful for forged LM308s, These are just some other opamp, remarked as LM308, these were discussed at some point in the TGS thread.

TL081 works (and you don't need the 100pFcapacitor), on my TGS both LM308 and TL081 perform similar.

Good Luck!

Molzar

[Tilladude]

Aah yes, lack of funds a very common malady, I know it well.

Take care out there,
Dennis

[Cyclonite]

Hi Dennis,

Thank you very much for your kind and encouraging words. It's an honor to be a member of a forum with such nice and stimulating people like yourself

And about the "geek in training";

As far as I know, he is not my son. But to be honest, I would not stick my hand in a fire and swear to this one in denial. Many of my previous, and now married girlfriends, seem to have had children with a startling alikeness to me. But there husbands think differently about these matters, and I wisely tend to leave them with there own thoughts. Alimony you know, may take strange leaps in a for me wrong direction. I wish that I was a millionaire, then I could afford my own harem, but I now share it with others. And in my financial situation, I tend to find it a noble deed

Regards,

Robert

[Tilladude]

OOPS I forgot, who is the geek in training in the photo at the end of your post?

Dennis

[Tilladude]

Dude you are a veritable river of infromation. I did finally find a sourse, but the wealth of info you have added to my knowlege base is most appreciated.

Many, many thanks
Dennis

[Cyclonite]

This LM308 Chip seems to be a big problem for many, but sources are plentiful. This Chip is still highly appreciated and recommended for use in Guitar Effects Pedals. And guitar players are (on the average) not interested in wonderful specs, for it's sound they are after. And if a certain kind of distortion and even noise generated by a specific component is appreciated, then this component won't die out. It's as simple as that. Any Guitar shop should have a handful of these components in stock. And they may even sell them at high prices because of some kind of BULL story connected to a superior sound quality belonging to a named artist and musician using a specific Chip Manufacturers IC's in his or her foot pedal, but they will have them for you.

LM308 in Retro-Sonic Distortion Foot Pedals:

The Retro-Sonic Distortion pedal is based on an LM308 op-amp design, and features true bypass switching, with Distortion, Tone and Level controls. Together, these provide a wide range of tonal possibilities, from subtly distorted blues tones through to classic rock and metal. As added flexibility, Retro-Sonic has incorporated two internal trim pots to allow adjustment to the frequency response of the gain structure. This gives Distortion users the option to tailor the overall response of the pedal to taste, by reducing or increasing the mix of high or low end content. More tonal flexibility can be explored through multiple clipping options via a 3 position mini toggle switch, which selects symmetrical-diode, asymmetrical-diode, or LED clipping.

http://www.miniature-guitar.com/video/video/Qu7kQ6Yridw/Retro-Sonic-Distortion-Pedal-Demo-by-Tone-Factor.html

LM308

Welcome to the LM308 resource center. This site is designed to help you easily find the latest LM308 reviews, LM308 auctions, and info videos and for sale. The LM308 information on this site is updated hourly, so if you are interested in pedals, bookmark this site so you can visit often (LM308 and OP07 IC comparison)

"Search" LM308 from the following link!!:

http://www.digitaldelaydd.com/BossPedals/index.php

500 pieces of LM308N / LM308 OP AMPS IC for Guitar Effect Pedals for $325.00 on eBay from this same Site

http://cgi.ebay.com/500PCS-LM308N-LM308-OP-AMP-IC-For-Guitar-Effect-Pedal_W0QQitemZ180420366974QQcategoryZ41415QQcmdZViewItem

LM308 on eBay for US $1.00:

http://cgi.ebay.com/NEW-ICS-LM308N-L...-/350302027307

50 Pieces of LM308N / LM308 OP AMPS IC for Guitar Effect Pedal for $46.50:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170418444798

or here:

http://shop.ebay.com/?_from=R40&_trksid=m570&_nkw=lm308

The sources for the LM308 are limitless, so just LOOK and you will find!!

Regards,

Robert

[Lambada]

AD797 Even better, but pin out is not the same and it's to expensive...

Regards.

[Tilladude]

Thanks Lambada looks like a possibility and it has same pin-out.

Dennis

[Lambada]

Did anyone tried OPO7 instead of TL071? TL071 noise = 15. OPO7 noise = 10. So I think, that OPO7 would be better.

Regards

[Tilladude]

Thanks Pip.

Dennis

[pip3c]

TL071 has not same pinout, check it before use.

[Tilladude]

Wes,

Thanks for the info, it and more is on order.

Take care out there,
Dennis

[WesP]

LM308N

Both Futurlec.com and Jameco.com show this chip in stock. I have ordered from both companies without any problems. Furturleec is much cheaper for this chip.