
Main pcb v2
Testbild-synth/Hagiwo_043_envelope_follower
PCB converion of the HAGIWO envelope follower module.

The TL072IPE4 is a FET Input Amplifier made by Texas Instruments in a PDIP-8 package with 8 pins. -40℃~+85℃ 100dB 120pA 1mV 2 20V/us 4.5V~40V 5.25MHz 5uV/℃ 937.5uA Short-Circuit Protection、EMI filtering/RF suppression PDIP-8 FET Input Amplifiers ROHS.
PCBKit's library has its KiCad symbol (Amplifier_Operational:TL072, from KiCad's library) and its footprint (Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7069151). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | — | Output |
| 2 | - | Input |
| 3 | + | Input |
| 4 | V- | Power in |
| 5 | + | Input |
| 6 | - | Input |
| 7 | — | Output |
| 8 | V+ | Power in |

Testbild-synth/Hagiwo_043_envelope_follower
PCB converion of the HAGIWO envelope follower module.
<iframe src="https://pcbkit.io/embed/parts/ti/TL072IPE4" title="TL072IPE4 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/TL072IPE4.jpg" alt="TL072IPE4" width="1200" height="900">[](https://pcbkit.io/parts/ti/TL072IPE4)Yes. The symbol is Amplifier_Operational:TL072 and the footprint Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
PDIP-8, with 8 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C7069151, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the TL072CP by Texas Instruments, the TL081CP by Texas Instruments, the TL071CP by Texas Instruments and the TL072IP by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.